Pseudopostega latisaccula is a moth of the family Opostegidae. It is probably widespread in the Greater Antilles but currently known only from Dominica (where it is common) and Puerto Rico. The length of the forewings is 2–2.4 mm. Adults are mostly white. Adults have been collected throughout most of the year with records for January, from to March to June and August.

Pseudopostega velifera is a moth of the family Opostegidae. It was described by Edward Meyrick in 1920. It is known from Maharashtra, India.

Pseudopostega caulifurcata is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from south-western Brazil. The length of the forewings is about 4.6 mm. Adults have been recorded in October.

Pseudopostega colognatha is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from Puerto Rico. The length of the forewings is 1.8–2.1 mm. Adults have been recorded in August.

Pseudopostega rotunda is a moth of the family Opostegidae. It is found known from the lowland forest of the La Selva Biological Reserve in north-eastern Costa Rica, the Guanacaste Province in north-western Costa Rica and the Napo Province in east-central Ecuador. The length of the forewings is 1.9–2.1 mm. Adults are mostly white with white forewings marked with an elongate, slender, brown dorsal spot. Adults are on wing from mid-February to mid-June in Costa Rica and in January in Ecuador.

Pseudopostega caulifurcata

Pseudopostega frigida is a moth of the family Opostegidae. It was described by Edward Meyrick in 1906. It is known from Sri Lanka. Adults have been recorded in February.

In theoretical computer science, a pseudorandom generator for low-degree polynomials is an efficient procedure that maps a short truly random seed to a longer pseudorandom string in such a way that low-degree polynomials cannot distinguish the output distribution of the generator from the truly random distribution. That is, evaluating any low-degree polynomial at a point determined by the pseudorandom string is statistically close to evaluating the same polynomial at a point that is chosen uniformly at random. Pseudorandom generators for low-degree polynomials are a particular instance of pseudorandom generators for statistical tests, where the statistical tests considered are evaluations of low-degree polynomials.

Pseudopulex is a genus of extinct, flea-like, parasitic insects that once fed on dinosaurs or pterosaurs. The two species, Pseudopulex jurassicus and Pseudopulex magnus, are similar to modern fleas, but their bodies were more compressed, and they had longer claws which they used to hold on tightly to dinosaurs or pterosaurs. They were also 10 times as large as modern fleas and possessed serrated stylets, likely for feeding on blood through thick layers of skin.

Pseudopontia paradoxa is a species of butterfly found only in wet forests of tropical Africa. It was traditionally thought to be the only species (monotypic) in the genus Pseudopontia and the subfamily Pseudopontiinae. However, a recent study showed there are at least five species of Pseudopontia which can be distinguished genetically and by details of wing veins. Each is found primarily in a different part of Africa, though several of the species have overlapping geographic distributions. The larvae feed on , and .

Pseudopostega epactaea is a moth of the family Opostegidae. It was described by Edward Meyrick in 1907. It is known from Sri Lanka. Adults have been recorded in February and March.

Pseudopompilia is a genus of moths in the subfamily Arctiinae. It contains the single species Pseudopompilia mimica, which is found in the Amazon region.

Pseudopulex

Pseudopompilus is a small genus of spider wasps in the subfamily Pompilinae and the tribe Psammoderini. which are found in southern Europe, the Middle East and southern Africa.

Pseudopostega velifera

Pseudoporopterus

Pseudopterosin E

Pseudopyrenula is a genus of fungi within the Trypetheliaceae family.

Pseudopostega gracilis is a moth of the family Opostegidae. It is only known from primary rainforest in north-eastern French Guiana. The length of the forewings is 2.3–2.5 mm. Adults are mostly white. Adults have been collected in January.

Pseudoradiarctia affinis is a moth in the family Erebidae. It was described by Bartel in 1903. It is found in Ghana, Sierra Leone and Tanzania.

Pseudopostega chalcopepla is a moth of the family Opostegidae. It is known from southern France, Monaco and the Iberian Peninsula, as well as Morocco and Tunisia. It is only found in the coastal region. The wingspan is 10.5–14 mm. Adults are on wing from June to July. The larvae possibly feed on Rosmarinus species.

The pseudorange (from pseudo- and range) is the pseudo distance between a satellite and a navigation satellite receiver (see GNSS positioning calculation) —for instance Global Positioning System (GPS) receivers. To determine its position, a satellite navigation receiver will determine the ranges to (at least) four satellites as well as their positions at time of transmitting. Knowing the satellites' orbital parameters, these positions can be calculated for any point in time. The pseudoranges of each satellite are obtained by multiplying the speed of light by the time the signal has taken from the satellite to the receiver. As there are accuracy errors in the time measured, the term pseudo-ranges is used rather than ranges for such distances.

Pseudopostega suffuscula is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from the provinces of Salta and Tucumán in northern Argentina. The length of the forewings is 2.4–3 mm. Adults have been recorded from November to January.

Pseudoporphyria is a bullous photosensitivity that clinically and histologically mimics porphyria cutanea tarda. The difference is that no abnormalities in urine or serum porphyrin is noted on laboratories. Pseudoporphyria has been reported in patients with chronic renal failure treated with hemodialysis and in those with excessive exposure to ultraviolet A (UV-A) by tanning beds.

Pseudopostega fumida

Pseudopostega acidata

In experimental particle physics, pseudorapidity, , is a commonly used spatial coordinate describing the angle of a particle relative to the beam axis. It is defined as where is the angle between the particle three-momentum and the positive direction of the beam axis. Inversely, As a function of three-momentum , pseudorapidity can be written as The rapidity as a function of pseudorapidity is given by where is the transverse momentum (i.e. the component of the three-momentum perpendicular to the beam axis).

Pseudopungtungia nigra

Pseudopyrausta santatalis

Pseudopsacothea is a genus of longhorn beetles of the subfamily Lamiinae, containing the following species:
* Pseudopsacothea albonotata Pic, 1935
* Pseudopsacothea modiglianii Breuning, 1970

Pseudopseustis

Pseudopostega napaeella

Pseudopostega alleni is a species of moth of the family Opostegidae. It was described by Puplesis and Robinson in 1999. It is known only from the Uthai Thani District in Thailand.

Pseudopostega resimafurcata is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from south-eastern Brazil. The length of the forewings is about 4.1 mm. Adults have been recorded in October.

Pseudorandom

Pseudopostega paromias

Pseudopsychology

Pseudopostega plicatella

Pseudopterosin A is a diterpene glycoside isolated from the gorgonian sea whip Pseudopterogorgia elisabethae, found in the Bahamas and Florida Keys. Pseudopterosins A-D, which differ in the degree of acetylation at the sugar ring, were first isolated and reported in 1986. There are at least 25 unique diterpenes isolated from this species of marine animal. Samples of P. elisabethae from the Bahamas are found to have higher concentrations of pseudopterosins than populations from the Florida Keys, which have a greater diversity in diterpene structures.

Pseudopsacothea albonotata

Pseudopontia sulphurescens

Pseudopterogorgia is a genus of soft coral sea fans in the family Gorgoniidae.

Pseudopostega mexicana is a moth of the family Opostegidae. It was described by Andrius Remeikis and Jonas R. Stonis in 2009. It is known from the Pacific Coast of Mexico. The wingspan is 4–4.3 mm for males. Adults have been recorded in November.

Pseudoproline

Pseudopostega divaricata

Pseudoramonia is a genus of lichenized fungi in the family Thelotremataceae.

Pseudopropionibacterium

Pseudopterogramma is a genus of flies belonging to the family Lesser Dung flies.

Pseudoprocometis

Pseudopostega subviolacea

Pseudopostega truncata is a moth of the family Opostegidae. It is only known from central Brazil. The length of the forewings is about 3.8 mm. Adults are mostly white with almost entirely white forewings. Adults have been collected in December and January.

Pseudopotamis is a genus of freshwater snails which have an operculum, aquatic gastropod mollusks in the family Pachychilidae.

Pseudoporopterus simulator is a species of weevils belonging to the family Curculionidae.

Pseudopostega parvilineata is a species of moth of the family Opostegidae. It was described by Puplesis and Robinson in 1999. It is known only from Sulawesi Utara in Indonesia.

Pseudoradiarctia tanzanica

Pseudoramibacter

Pseudopostega beckeri

Pseudopostega bellicosa is a moth of the family Opostegidae. It was described by Edward Meyrick in 1911. It is known from the area of the former Transvaal Province, South Africa. Adults have been recorded in October.

Pseudopostega subviolacea is a moth of the family Opostegidae. It was described by Edward Meyrick in 1920. It is known from Gujarat, India.

Pseudopterogorgia bipinnata

Pseudopostega duplicata is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from Costa Rica and Tortola in the British Virgin Islands. The length of the forewings is 2–2.8 mm. Adults have been recorded almost throughout the year in Costa Rica and in April and July in the British Virgin Islands.

Pseudopostega serrata

Pseudopyrausta craftsialis is a moth in the family Crambidae. It was described by Harrison Gray Dyar Jr. in 1914. It is found in Panama.

Pseudoprocometis is a genus of moths of the Xyloryctidae family.

Pseudopostega conicula is a moth of the family Opostegidae. It known only from the Guanacaste Province in north-western Costa Rica in lowland, seasonal dry forests. The length of the forewings is 2.3–2.6 mm. Adults are on wing in July and August.

Pseudopostega acrodicra is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from south-central Brazil. The length of the forewings is 5-5.6 mm. Adults have been recorded from September to November.

Pseudopostega clavata is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from south-eastern Puerto Rico. The length of the forewings is 2.2–2.6 mm. Adults have been recorded in August.

Pseudopostega subtila is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from the state of Minas Gerais of south-eastern Brazil. The length of the forewings is about 3.8 mm. Adults have been recorded in December.

Pseudopostega paraplicatella is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from Amazonian rainforest of eastern Ecuador. The length of the forewings is about 3 mm. Adults have been recorded in January.

Pseudopolynesia is a genus of moths in the family Geometridae.

Pseudopomyzidae

Pseudopostega brachybasis

*Globiceps paradoxa (Felder & Felder, 1869)

Pseudopostega monosperma is a moth of the family Opostegidae. It was described by Edward Meyrick in 1931. It is known from Bahia, Brazil. The length of the forewings is about 3.6 mm.

Pseudopostega crepusculella is a moth of the family Opostegidae. It is found in Europe. The wingspan is 7–10.5 mm. The moths fly from June to July depending on the location. It is believed that the larvae feed on Mentha species.

Pseudopsocus rostocki is a species of Psocoptera from Trichopsocidae family that can be found in England and Ireland. It can also be found in Benelux, France, Germany, Poland, Spain, and Sweden. The species are black and white coloured, and are striped. It feeds on lichen-covered conifers.

Pseudopostega protomochla is a moth of the family Opostegidae. It was described by Edward Meyrick in 1935. It is known from north-central Argentina and the state of Minas Gerais in southern Brazil. The length of the forewings is 3.5–5 mm. Adults have been recorded from November to February in Argentina and in October in Brazil.

Pseudopostega acidata is a moth of the family Opostegidae. It was described by Edward Meyrick in 1915. It is known from the Rio Grand Valley of southern Texas and southern Ecuador. The length of the forewings is 2.7–4.1 mm. Adults have been recorded in June (in Ecuador) and from September to November (in southern Texas).

Pseudopontia is a genus of butterflies found only in wet forests of tropical Africa. It is the only genus in the subfamily Pseudopontiinae. It was traditionally thought to contain only one species (monotypic), Pseudopontia paradoxa. However, a recent study showed there are at least five species of Pseudopontia which can be distinguished genetically and by details of wing veins. Each is found primarily in a different part of Africa, though several of the species have overlapping geographic distributions. It is considered paradoxical because, despite being a true butterfly (Papilionoidea), its antennae do not have the characteristic clubbed ends which are otherwise diagnostic of butterflies (Rhopalocera).

Pseudopontia mabira is a butterfly in the family Pieridae. It is found in Uganda and the Democratic Republic of Congo within about 5 degrees latitude north and south of the Equator.

Pseudopostega duplicata

The pseudorange (from pseudo- and range) is the pseudo distance between a satellite and a navigation satellite receiver (see GNSS positioning calculation) —for instance Global Positioning System (GPS) receivers.

Pseudoprotoceras is an extinct genus of Artiodactyla, of the family Protoceratidae, endemic to central North America. It lived during the Late Eocene 37.2—33.9 Ma, existing for approximately 3 million years. Pseudoprotoceras resembled hornless deer, but were more closely related to camelids. Body mass was similar to other Eocene protoceratids such as Heteromeryx and Poabromylus yet greater than Leptotragulus and Leptoreodon. Miocene members were apparently larger as well.

Pseudopostega truncata

Pseudopostega obtusa is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from northern Ecuador. The length of the forewings is about 3.4 mm. Adults have been recorded in January.

Pseudopostega sacculata

Pseudopostega triangularis

Pseudopuberty

Pseudopusula depauperata

Pseudopolynesia hebe is a moth in the family Geometridae. It is found in New Guinea, as well as on Sulawesi and the southern Moluccas.

Pseudopostega apotoma is a moth of the family Opostegidae. It is only known from Minas Gerais and Pará in south-eastern and north-eastern Brazil. The length of the forewings is 3.4–3.7 mm. Adults are mostly white. Adults have been collected in January and November.

Pseudopostega rotunda

Pseudopostega indonesica

Pseudopostega tenuifurcata

In theoretical computer science, a pseudorandom generator for low-degree polynomials is an efficient procedure that maps a short truly random seed to a longer pseudorandom string in such a way that low-degree polynomials cannot distinguish the output distribution of the generator from the truly random distribution. That is, evaluating any low-degree polynomial at a point determined by the pseudorandom string is statistically close to evaluating the same polynomial at a point that is chosen uniformly at random.

Pseudopyrausta cubanalis is a moth of the family Crambidae described by William Schaus in 1920. It is native to Cuba and has a wingspan of 15 mm.

Pseudoprime Number

Pseudopsychopathic personality disorder

Pseudorandom number sampling

Pseudopostega denticulata is a moth of the family Opostegidae. It is only known from eastern and western Ecuador. The length of the forewings is about 2.3 mm. Adults are mostly white. Adults have been collected in January.

Pseudopostega attenuata is a moth of the family Opostegidae. It is probably a rather widespread species in the South American lowland tropics. The species is known from Costa Rica, north-western Brazil and south-western Ecuador. The length of the forewings is 1.8–2.2 mm. Adults have been found from February to June in Costa Rica and Brazil and in January in Ecuador.

Pseudopostega dorsalis is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from Costa Rica. The length of the forewings for ssp. dorsalis is 2.2–3.3 mm. Adults have been recorded throughout much of the year, with records known for March to April, June to July and October to November. The length of the forewings for ssp. fasciata is 2.4–2.9 mm. Adults of this subspecies have been collected from May to July and September to November.

Pseudopythina tsurumaru is a species of mollusc in the family Lasaeidae. The scientific name of this species was first published by Habe in 1959.

Pseudorandom m-sequence

Pseudoramibacter is a Gram-positive, strictly anaerobic, non-spore-forming and non-motile bacterial genus from the family of Eubacteriaceae with one known species (). Pseudoramibacter bacteria occur in birds. Pseudoramibacter alactolyticus is associated with endodontic infections.

Pseudopostega crepusculella

Pseudopothyne luzonica is a species of beetle in the family Cerambycidae. It was described by Breuning in 1960.

Pseudopostega nepalensis is a species of moth of the family Opostegidae. It was described by Puplesis and Robinson in 1999. It is known only from Nepal.

Pseudoprocometis baronella is a moth in the Xyloryctidae family. It was described by Viette in 1956. It is found in Madagascar.

Pseudopostega strigulata is a species of moth of the family Opostegidae. It was described by Puplesis and Robinson in 1999. It is known only from Assam in India.

Pseudopostega alleni

Pseudorationalism was the label given by economist and philosopher Otto Neurath to a school of thought that he was heavily critical of, throughout many of his writings but primarily in his 1913 paper "The lost wanderers of Descartes and the auxiliary motive" and later to a lesser extent in his 1935 "Pseudorationalismus der Falsifikation", a review of and attack on Popper's first book, Logik der Forschung (The Logic of Scientific Discovery), contrasting this approach with his own view of what rationalism should properly be. Neurath aimed his criticism at a Cartesian belief that all actions can be subject to rational analysis, saying that Once reason has gained a certain influence, people generally show a tendency to regard all their actions as reasonable. Ways of action which depend on dark instincts receive reinterpretation or obfuscation. — , p. 441 Neurath considered that "pseudo-rationalists", be they philosophers or scientists, made the mistake of assuming that a complete rational system could be devised for the laws of nature. He argued rather that no system could be complete, being based upon a picture of reality that could only ever be incomplete and imperfect. Pseudo-rationalism, in Neurath's view, was a refusal or simple inability to face up to the limits of rationality and reason. "Rationalism", he wrote (, p. 8), "sees its chief triumph in the clear recognition of the limits of actual insight.". Whereas a pseudorationalist acknowledges no such limits, but rather contents that all decisions can be subject to the rules of insight. Scientific method is, according to Neurath, pseudorationalist where it contends that the rules for the scientific method will always lead ever closer to the truth. Neurath further challenged Cartesian "pseudorationalism" by asserting that operating upon incomplete data was in fact the norm, where Cartesian thinking would have it be the rare exception. Rather than there being one, final, rational answer to any given problem, Neurath asserted that scientific endeavour required a continuing and never-ending series of choices, made so in part because of the ambiguity of language.

Pseudopostega divaricata is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from northern Argentina. The length of the forewings is 3.5–4.8 mm. Adults have been recorded in January and November.

Pseudopostega acrodicra

Pseudopropionibacterium is a bacterial genus from the family of Propionibacteriaceae.

Pseudopostega floridensis is a moth of the family Opostegidae. It is only known from southern Florida, United States. The length of the forewings is about 2.4 mm. Adults are mostly white with a variably distinct dark brown dorsal spot on forewing and dark brown apical spot. Adults have been collected in June and November.

Pseudopusula is a genus of small sea snails, marine gastropod mollusks in the family Triviidae, the false cowries or trivias.

* Simulatacalles simulator (Roelofs 1875)

Pseudopostega lobata is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is probably a common, widespread neotropical species, now reported in Central America from Belize to Costa Rica, with two records from northern Argentina. The length of the forewings is 2–2.4 mm. In Central America, adults have been recorded over much of the year from January to August and October, with only November reported for Argentina.

Pseudopostega elachista is a moth of the family Opostegidae. It was described by Walsingham, Lord Thomas de Grey, in 1914. It is known from Guerrero, Mexico. The length of the forewings is about 4.4 mm (0.17 in). Adults have been recorded in September.

Pseudopulex jurassicus

Pseudopostega protomochla

Pseudorasbora interrupta is a species of cyprinid fish endemic to streams on Fenghuang Mountain in Guangdong, China.

Pseudopostega longipedicella

Pseudopsocus rostocki

Pseudopyrausta marginalis

lightgrey

Pseudopostega spilodes is a moth of the family Opostegidae. It was described by Edward Meyrick in 1915. It is known from Mysore, India.

Pseudopolynomial time

Pseudopusula depauperata is a species of small sea snail, a marine gastropod mollusk in the family Triviidae, the false cowries or trivias.

Pseudorandom-function advantage

Pseudorabies virus

Pseudopostega fumida is a moth of the family Opostegidae. It is only known from secondary, tropical forest in central Belize. The length of the forewings is about 2.1 mm. Adults are glossy gray with a largely white head. Adults have been collected in April.

Pseudopostega apotoma

Pseudoramonia

Pseudopostega machaerias

Pseudopsacothea modiglianii is a species of beetle in the family Cerambycidae. It was described by Stephan von Breuning in 1970.

Pseudopostega machaerias is a moth of the family Opostegidae. It was described by Edward Meyrick in 1907. It is known from Maskeliya, Sri Lanka.

Pseudopostega contigua

Pseudopostega similantis is a species of moth of the family Opostegidae. It was described by Puplesis and Robinson in 1999. It is known only from central Sumba in Indonesia.

Pseudopterogramma

Pseudopostega pexa

Pseudopostega crassifurcata is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from the Sierra Maestra of south-eastern Cuba. The length of the forewings is about 2.5 mm. Adults have been recorded in July.

Pseudopostega galapagosae is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is probably endemic to the Galápagos Islands where it has been collected on the islands of Fernandina, Isabela, San Cristóbal, Santa Cruz and Santiago. The length of the forewings is 2.3–3.4 mm. Adults have been recorded from January to May.

Pseudopostega diskusi is a moth of the family Opostegidae. It is only known from the Cayo District of central Belize. The length of the forewings is 2.8–3.1 mm. Adults are mostly white. Adults have been collected in April.

Pseudorabies

Pseudopostega pontifex

Pseudopolynesia

Pseudopotto

Pseudoporrhopis is a genus of spiders in the Thomisidae family. It was first described in 1886 by Simon. As of 2017, it contains only one species, Pseudoporrhopis granum, found in Madagascar.

Pseudopterosin E is an anti-inflammatory isolate from the Caribbean coral Pseudopterogorgia elisabethae.

Pseudopsacothea modiglianii

Pseudopsacothea albonotata is a species of beetle in the family Cerambycidae. It was described by Maurice Pic in 1935.

Pseudopostega bellicosa

Pseudopterosin A

Pseudopostega accessoriella

Pseudoporphyria

Pseudopostega didyma is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from a moist tropical site located on the western slopes of the Andes and the AmazonianOriente Region in Ecuador. The length of the forewings is 2.5–2.7 mm. Adults have been recorded in January.

Pseudoproboscispora

Pseudopostega albogaleriella

Pseudoprimes

Pseudopompilus

Pseudopostega paromias is a moth of the family Opostegidae. It was described by Edward Meyrick in 1915. It is known from Matucana, Peru. The length of the forewings is about 4 mm. Adults have been recorded in July.

Pseudopycnadena

Pseudopostega beckeri is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from the states of Goias, Minas Gerais and Parana in south-central Brazil. The length of the forewings is 3.7–4.4 mm. Adults have been recorded in November.

In cryptography, a pseudorandom function family, abbreviated PRF, is a collection of efficiently-computable functions which emulate a random oracle in the following way: no efficient algorithm can distinguish (with significant advantage) between a function chosen randomly from the PRF family and a random oracle (a function whose outputs are fixed completely at random). Pseudorandom functions are vital tools in the construction of cryptographic primitives, especially secure encryption schemes.

Pseudorabdion mcnamarae

Pseudoprosopis is a genus of flowering plants in the legume family, Fabaceae. It belongs to the mimosoid clade of the subfamily Caesalpinioideae.

Pseudopostega latiapicula is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from the La Selva Biological Station of north-eastern Costa Rica and the state of Paraná in north-eastern Brazil. The length of the forewings is about 2.4 mm. Adults have been recorded in January, February and August.

In cryptography, a pseudorandom ensemble is a family of variables meeting the following criteria: Let be a uniform ensembleand be an ensemble. The ensemble is called pseudorandom if and are indistinguishable in polynomial time.

Pseudoradiarctia tanzanica is a moth in the family Erebidae. It was described by Haynes in 2011. It is found in Tanzania.

Pseudopostega turquinoensis

Pseudorandom function family

Pseudorandom ensemble

Pseudopostega sacculata is a moth of the family Opostegidae. It known only from south-western Ecuador. The length of the forewings is about 2.6 mm. Adults are on wing in January and June.

Pseudopostega albogalleriella

Pseudopostega pumila is a moth of the family Opostegidae. It was described by Walsingham, Lord Thomas de Grey, in 1914. It is known from Tabasco, Mexico. The length of the forewings is about 3.2 mm. Adults have been recorded in March.

Pseudoprocometis baronella

Pseudoraphis is a genus of Asian and Australian plants in the grass family, commonly known as mudgrasses. They grow in open, wet habitat, such as marshes. Some are aquatic, floating plants. A defining characteristic is a long, stiff bristle extending from the tip of each branch of the inflorescence. Pseudoraphis is closely related to the genus Chamaeraphis. Species 1.
* - Hainan, Thailand, Vietnam 2.
* - Anhui, Guangdong, Taiwan, Japan, Assam, Bangladesh, Sri Lanka, Myanmar, Philippines, Thailand, Vietnam 3.
* - Queensland 4.
* - Queensland, Northern Territory, Vietnam, Myanmar, India, Bangladesh 5.
* - Queensland, New South Wales, Victoria, Western Australia 6.
* - Japan, Korea, Fujian, Hubei, Hunan, Jiangsu, Shandong, Yunnan, Zhejiang, India, Sri Lanka 7.
* Pseudoraphis spinescens - Moira grass, spiny mudgrass - Australia, New Guinea, Southeast Asia, Indian Subcontinent

Pseudoprofanities

Pseudopostega pontifex is a moth of the family Opostegidae. It was described by Edward Meyrick in 1915. It is known from Cali, Colombia. The length of the forewings is about 2.7 mm. Adults have been recorded in May.

Pseudorabdion is a genus of snakes of the family Colubridae.

In theoretical computer science and cryptography, a pseudorandom generator (PRG) for a class of statistical tests is a deterministic procedure that maps a random seed to a longer pseudorandom string such that no statistical test in the class can distinguish between the output of the generator and the uniform distribution. The random seed is typically a short binary string drawn from the uniform distribution.

Pseudorapidity

Pseudoprocometis robletella

Pseudorandom number

Pseudopontia cepheus

Pseudorandom encoders

Pseudopontia paradoxa is a species of butterfly found only in wet forests of tropical Africa. It was traditionally thought to be the only species (monotypic) in the genus Pseudopontia and the subfamily Pseudopontiinae. However, a recent study showed there are at least five species of Pseudopontia which can be distinguished genetically and by details of wing veins. Each is found primarily in a different part of Africa, though several of the species have overlapping geographic distributions. It is considered paradoxical because, despite being a true butterfly (Papilionoidea), its antennae do not have the characteristic clubbed ends which are otherwise diagnostic of butterflies (Rhopalocera). The larvae feed on , and .

Pseudopostega conicula

Pseudopyrausta santatalis is a moth in the family Crambidae. It was described by William Barnes and James Halliday McDunnough in 1914. It is found in the United States, where it has been recorded from southern Texas and Florida. It is also found in the West Indies and Mexico. The wingspan is about 15 mm. The forewings are white, suffused with ocherous. The hindwings are white, shaded with ocherous. Adults have been recorded on wing from February to October.

Pseudopterosin

Pseudopycnadena is a genus of trematodes in the family Opecoelidae.

Pseudopostega amphivittata is a species of moth of the family Opostegidae. It was described by Puplesis and Robinson in 1999. It is known only from Sulawesi in Indonesia.

Pseudorandom number generators

Pseudorabdion

Pseudopostega lobata

Pseudopostega zelopa is a moth of the family Opostegidae. It was described by Edward Meyrick in 1905. It is known from , Sri Lanka.

Pseudopostega indonesica is a species of moth of the family Opostegidae. It was described by Puplesis and Robinson in 1999. It is known only from Sulawesi Utara in Indonesia.

Pseudopontia australis is a butterfly in the family Pieridae. It is found in the Democratic Republic of the Congo, the Republic of the Congo and eastern Gabon.

Pseudopsellonus

Pseudopostega congruens

Pseudoprotaetia stictica

Pseudopostega contigua is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from riparian forest along the Rio Negro of southern Venezuela. The length of the forewings is about 2 mm. Adults have been recorded in December.

Pseudorandom noise

Pseudopostega sectila is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from Puerto Rico and Tortola in the British Virgin Islands. The length of the forewings is 3–3.7 mm. Adults have been recorded in July.

Pseudopontiinae

Pseudorandom Number Generator

Pseudopostega microlepta

Pseudopyrenula

Pseudopothyne is a genus of beetles in the family Cerambycidae, containing the following species:
* Pseudopothyne luzonica Breuning, 1960
* Pseudopothyne multivittipennis Breuning, 1960

Pseudopostega frigida

Pseudopostega breviapicula is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It has a wide range in the Neotropical Region from Panama south to north-eastern and south-eastern Brazil and north-central Argentina. The length of the forewings is 2.9–3 mm. Adults have been recorded throughout much of the year over its broad range, including October, December and January (in Brazil), September (in Argentina) and May (in Panama).

Pseudopontia is a genus of butterflies found only in wet forests of tropical Africa. It is the only genus in the subfamily Pseudopontiinae. It was traditionally thought to contain only one species (monotypic), Pseudopontia paradoxa. However, a recent study showed there are at least five species of Pseudopontia which can be distinguished genetically and by details of wing veins. Each is found primarily in a different part of Africa, though several of the species have overlapping geographic distributions.

Pseudoprocometis robletella is a moth in the Xyloryctidae family. It was described by Viette in 1956. It is found in Madagascar.

Pseudopterodon

Pseudopontia

Pseudopostega kempella is a moth of the family Opostegidae. It known only from the type locality of Key Largo in southern Florida. The length of the forewings is 1.8–2.5 mm. Adults are on wing in October and November.

Pseudopostega venticola is a moth of the family Opostegidae. It was described by Walsingham, Lord Thomas de Grey, in 1897. It is known from much of the Neotropical Region from southern Florida and Texas, through much of the West Indies and Central America to southern Brazil. The length of the forewings is 2.5–3.3 mm. Adults have been recorded in nearly every month.

Pseudopompilia

Pseudoporopterus is a genus of weevils belonging to the family Curculionidae.

Pseudoporrhomma is a genus of spiders in the Linyphiidae family. It was first described in 1993 by Eskov. As of 2017, it contains only one species, Pseudoporrhomma maritimum, found in Russia.

Pseudopostega myxodes

Pseudorabdion mcnamarae is a species of snake in the family Colubridae. The species is endemic to the Philippines.

Pseudopostega texana

Pseudopotamis

Pseudopostega adusta is a moth of the family Opostegidae. It was described by Walsingham, Lord Thomas de Grey, in 1897. It is known from the West Indies, from Cuba east to Dominica, south to Belize and Ecuador. It is also known from Costa Rica. The length of the forewings is 2.1–2.8 mm. Adults have been recorded in January, March to April and June.

Pseudoquaternion

Pseudoprocris is a genus of moths of the family Zygaenidae.

Pseudopungtungia tenuicorpus

Pseudopostega congruens is a moth of the family Opostegidae. It was described by Walsingham, Lord Thomas de Grey, in 1914. It is known from Guerrero, Mexico. The length of the forewings is about 4.4 mm. Adults have been recorded in August.

Pseudopostega microlepta is a moth of the family Opostegidae. It is known from western Ecuador and lowland, north-eastern Guyana. The length of the forewings is about 2.2 mm. Adults are mostly white. Adults have been collected in February and June.

Pseudopostega serrata is a moth of the family Opostegidae. It is widespreadin Costa Rica up to elevations of 1,520 meters. It has also been recorded from Ecuador and southern Panama. The length of the forewings is 2.3–3.4 mm. Adults are mostly white. Adults are on wing through much of the year in Costa Rica, with known records from January, March, April, May and from July to September. There is one record for January in Ecuador and March in Panama.

Pseudoradiarctia affinis

Pseudopyogenic granuloma

Pseudopostega diskusi

Pseudoptilinus is a genus of beetles in the family Ptinidae. There is at least one described species in Pseudoptilinus, P. fissicollis.

Pseudoporrhopis

*Pseudopontia paradoxa australis (Dixey, 1923)

Pseudopostega denticulata

Pseudopostega elachista

Pseudopostega concave

Pseudopostega longipedicella is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from Puntarenas in Costa Rica and the Canal Zone in Panama. The length of the forewings is 2.3–3.7 mm. Adults have been recorded in April.

Pseudopostega latisaccula

Pseudorandom number sequence

Pseudoradiarctia is a genus of moth in the family Erebidae from Afrotropics.

Pseudopostega curtarama is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from the provinces of Goias and Minas Gerais in southern Brazil.

Pseudopontia mabira

Pseudopringsheimia

Pseudopregnancies

Pseudopsocus meridionalis

Pseudopostega saltatrix

Pseudoptychoparia

Pseudopostega tenuifurcata is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from a lowland rainforest area in north-eastern Costa Rica The length of the forewings is 2.3–2.5 mm. Adults have been recorded from January to May.

Pseudopostega texana is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from the Rio Grande Valley of southern Texas, probably south into Mexico. The length of the forewings is 2.5–3 mm. Adults have been recorded in April and from July to early October.

Pseudopostega mignonae is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from Cuba and Jamaica. The length of the forewings is 3.8–4.3 mm. Adults have been recorded in April and June.

Pseudopseustis pseudamoena

Pseudorandom Advantage

Pseudopostega quadristrigella is a moth of the family Opostegidae. It was described by Frey and Boll in 1876. It is known from Maine west to South Dakota and south to Texas. The length of the forewings is 4.4–5.2 mm. Adults have been recorded from May to August.

Pseudoptilinus

Pseudorandom graph

Pseudopostega tucumanae

Pseudoprospherysa

Pseudopostega clavata

Pseudopostega lateriplicata

Pseudopostega albogaleriella is a moth of the family Opostegidae. It is widely distributed through eastern North America from Nova Scotia to central Florida and south-eastern Texas and in the south-western United States through areas of California and Arizona.

Pseudopseudohypoparathyroidism

Pseudopontia paradoxa

Pseudopseudohypoparathyroidism (PPHP) is an inherited disorder, named for its similarity to pseudohypoparathyroidism in presentation. It is more properly Albright hereditary osteodystrophy although without resistance of parathyroid hormone frequently seen in that affliction. The term pseudopseudohypoparathyroidism is used to describe a condition where the individual has the phenotypic appearance of pseudohypoparathyroidism type 1a, but has (unexpected for the phenotype) normal labs including calcium and PTH. It can be considered a variant of Albright hereditary osteodystrophy, or pseudohypoparathyroidism type 1A, as they present with the same constellation of signs and symptoms, including short stature, brachydactyly, subcutaneous calcification, and obesity.

Pseudopostega zelopa

Pseudopostega pumila

Pseudopsinae

Pseudopostega sectila

In cryptography, pseudorandom noise (PRN ) is a signal similar to noise which satisfies one or more of the standard tests for statistical randomness. Although it seems to lack any definite pattern, pseudorandom noise consists of a deterministic sequence of pulses that will repeat itself after its period. In cryptographic devices, the pseudorandom noise pattern is determined by a key and the repetition period can be very long, even millions of digits.

Pseudopostega javae

Pseudopostega similantis

Pseudoraja fischeri

Pseudopostega obtusa

Pseudoprimality

Pseudopothyne

Pseudoraja

Pseudopusula californiana

Pseudoraniceps

Pseudorange

Pseudorandom permutation

Pseudopostega monstruosa is a moth of the family Opostegidae. It is only known from Amazonian premontane rainforest in east-central Ecuador. The length of the forewings is about 3 mm. Adults are mostly white. Adults have been collected in January.

Pseudoporrhopis granum

Pseudoprosopis

Pseudopostega pexa is a moth of the family Opostegidae. It is only known from north-eastern Brazil. The length of the forewings is about 3.2 mm. Adults are mostly white. Adults have been collected in July.

Pseudopythina tsurumaru

A pseudorandom binary sequence (PRBS) is a binary sequence that, while generated with a deterministic algorithm, is difficult to predict and exhibits statistical behavior similar to a truly random sequence. PRBS are used in telecommunication, especially to spread the information content in Analog-to-Information Converters, but also in encryption, simulation, correlation technique and time-of-flight spectroscopy.

Pseudorandom sequence

Pseudoprepona

Pseudoporrhomma

Pseudoprospero firmifolium

Pseudopostega saltatrix is a moth of the family Opostegidae. It was described by Walsingham, Lord Thomas de Grey, in 1897. It was described from St. Thomas, in the Virgin Islands, but has an extremely wide range, from Cuba to Dominica in the West Indies, south from Belize to Ecuador, French Guiana and Paraguay. The length of the forewings is 2.1–3.1 mm. In Costa Rica, adults have been collected throughout the year.

Pseudopostega mignonae

Pseudopostega amphivittata

Pseudopulex magnus

Pseudopostega clastozona

Pseudoraphis is a genus of Asian and Australian plants in the grass family, commonly known as mudgrasses. They grow in open, wet habitat, such as marshes. Some are aquatic, floating plants. A defining characteristic is a long, stiff bristle extending from the tip of each branch of the inflorescence. Pseudoraphis is closely related to the genus Chamaeraphis.

Pseudopothyne luzonica

Pseudorasbora interrupta

Pseudopseudohypoparathyroidism (PPHP) is an inherited disorder, named for its similarity to pseudohypoparathyroidism in presentation. It is more properly Albright hereditary osteodystrophy although without resistance of parathyroid hormone frequently seen in that affliction. The term pseudopseudohypoparathyroidism is used to describe a condition where the individual has the phenotypic appearance of pseudohypoparathyroidism type 1a, but has (unexpected for the phenotype) normal labs including calcium and PTH.

In cryptography, pseudorandom noise (PRN ) is a signal similar to noise which satisfies one or more of the standard tests for statistical randomness. Although it seems to lack any definite pattern, pseudorandom noise consists of a deterministic sequence of pulses that will repeat itself after its period. In cryptographic devices, the pseudorandom noise pattern is determined by a key and the repetition period can be very long, even millions of digits. Pseudorandom noise is used in some electronic musical instruments, either by itself or as an input to subtractive synthesis, and in many white noise machines. In spread-spectrum systems, the receiver correlates a locally generated signal with the received signal. Such spread-spectrum systems require a set of one or more "codes" or "sequences" such that
* Like random noise, the local sequence has a very low correlation with any other sequence in the set, or with the same sequence at a significantly different time offset, or with narrow band interference, or with thermal noise.
* Unlike random noise, it must be easy to generate exactly the same sequence at both the transmitter and the receiver, so the receiver's locally generated sequence has a very high correlation with the transmitted sequence. In a direct-sequence spread spectrum system, each bit in the pseudorandom binary sequence is known as a chip and the inverse of its period as chip rate; compare bit rate and symbol rate. In a frequency-hopping spread spectrum sequence, each value in the pseudorandom sequence is known as a channel number and the inverse of its period as the hop rate. FCC Part 15 mandates at least 50 different channels and at least a 2.5 Hz hop rate for narrow band frequency-hopping systems. GPS satellites broadcast data at a rate of 50 data bits per second – each satellite modulates its data with one PN bit stream at 1.023 million chips per second and the same data with another PN bit stream at 10.23 million chips per second.GPS receivers correlate the received PN bit stream with a local reference to measure distance. GPS is a receive-only system that uses relative timing measurements from several satellites (and the known positions of the satellites) to determine receiver position. Other range-finding applications involve two-way transmissions. A local station generates a pseudorandom bit sequence and transmits it to the remote location (using any modulation technique). Some object at the remote location echoes this PN signal back to the location station – either passively, as in some kinds of radar and sonar systems, or using an active transponder at the remote location, as in the Apollo Unified S-band system. By correlating a (delayed version of) the transmitted signal with the received signal, a precise round trip time to the remote location can be determined and thus the distance.

Pseudorandom number generation

Pseudopostega mexicana

Pseudorandom binary sequence

Pseudopyrausta marginalis is a moth in the Crambidae family. It was described by Harrison Gray Dyar Jr. in 1914. It is found in Panama and North America, where it has been recorded from Alaska, Quebec, Texas and Wisconsin. The wingspan is 14–15 mm. Adults are on wing from May to November.

Pseudopostega

In theoretical computer science and cryptography, a pseudorandom generator (PRG) for a class of statistical tests is a deterministic procedure that maps a random seed to a longer pseudorandom string such that no statistical test in the class can distinguish between the output of the generator and the uniform distribution. The random seed is typically a short binary string drawn from the uniform distribution. Many different classes of statistical tests have been considered in the literature, among them the class of all Boolean circuits of a given size.It is not known whether good pseudorandom generators for this class exist, but it is known that their existence is in a certain sense equivalent to (unproven) circuit lower bounds in computational complexity theory.Hence the construction of pseudorandom generators for the class of Boolean circuits of a given size rests on currently unproven hardness assumptions.

Pseudoradiarctia pallida is a moth in the family Erebidae. It was described by Haynes in 2011. It is found in Kenya, Malawi, Tanzania and Zimbabwe.

Pseudoproboscispora is a genus of fungi in the Annulatascaceae family of the Ascomycota. The relationship of this taxon to other taxa within the Sordariomycetes class is unknown (incertae sedis), and it has not yet been placed with certainty into any order.

In cryptography, a pseudorandom permutation (PRP) is a function that cannot be distinguished from a random permutation (that is, a permutation selected at random with uniform probability, from the family of all permutations on the function's domain) with practical effort. An unpredictable permutation (UP) Fk is a permutation whose values cannot be predicted by a fast randomized algorithm. Unpredictable permutations may be used as a cryptographic primitive, a building block for cryptographic systems with more complex properties.

Pseudopostega brevivalva

Pseudoprotaetia puncticollis

Pseudorandom permutations on arbitrary finite domains

Pseudopostega sumbae

Pseudoprime Numbers

Pseudopostega albogaleriella is a moth of the family Opostegidae. It is widely distributed through eastern North America from Nova Scotia to central Florida and south-eastern Texas and in the south-western United States through areas of California and Arizona. The length of the forewings varies from 3 to 5.3 mm and occasionally even to 6 mm. Adults are mostly white. Adults are encountered primarily during June and July into early August over the northern part of their range. Possibly two generations occur through the southern part of the United States, with adults appearing from February to June and from August to as late as October.

Pseudopostega is a genus of moths of the family Opostegidae.

Pseudopostega epactaea

Pseudoradiarctia

Pseudoradiarctia parva is a moth in the family Erebidae. It was described by Haynes in 2011. It is found in Tanzania and Zambia.

Pseudopopoudina

Pseudopsellonus papuanus

Pseudorandom generators

Pseudoraphis

Pseudopostega latiapicula

Pseudorandom generator (Theorem)

Pseudopostega sublobata

Pseudoradiarctia parva

*Pseudopontia paradoxa australis f. siccana (Pinhey, 1962)

Pseudopostega breviapicula

Pseudopyrausta craftsialis

Pseudopostega parvilineata

Pseudopostega latiplana

Pseudorandom encoder

Pseudopostega chalcopepla

Pseudopostega adusta

Pseudopostega floridensis

Pseudopostega curtarama

Pseudopsinae is a beetle subfamily of Staphylinidae.

Pseudopompilia mimica

*Discotrivia dartevellei (Knudsen, 1955)

Pseudoptilinus fissicollis

Pseudorandom generator

*Blepharomastix santatalis (Barnes & McDunnough, 1914)

Pseudopostega resimafurcata

Pseudorandom generators for polynomials

Pseudopusula californiana, common name the "coffee bean trivia", is a species of small sea snail, a marine gastropod mollusk in the family Triviidae, the trivias.

Pseudopostega lateriplicata is a moth of the family Opostegidae. It is only known from the La Selva Biological Reserve, a lowland rainforest area in north-eastern Costa Rica. The length of the forewings is about 1.9 mm. Adults are mostly white with white forewing marked with a small, pale brown, dorsal spot just below middle of dorsal margin. Adults have been collected in March.

Pseudopostega tucumanae is a moth of the family Opostegidae. It is only known from the province of Tucuman, in northern Argentina at an elevation of 800 meters. The length of the forewings is 3.1–4 mm. Adults are mostly white. Adults have been collected in December and February.

A pseudorandom encoder is an electro-mechanical device used for measuring distance and finding position. It is different from the conventional absolute and incremental encoder in its disk pattern, which gives it aspects of the other two designs. The disk of a pseudorandom encoder has an evenly spaced notch design just as an incremental encoder to measure distance. A second track of code is used to find the position just like an absolute encoder; however, an absolute encoder tells position from reading from multiple parallel tracks while a pseudorandom encoder uses one single track. This aspect allows pseudorandom rotary encoders to have smaller diameters and larger through-holes. To know its position, the encoder must first move a certain distance to read the code. This distance is generally small, about 1-2 degrees for rotary encoders and 1 mm for linear encoders, though this idiosyncrasy does hinder its usefulness in some applications such as track-balls since position is not immediately known when the system starts.

Pseudopostega ovatula

Pseudopostega paraplicatella

Pseudopostega brevifurcata

Pseudopusula

Pseudopostega euryntis is a moth of the family Opostegidae. It was described by Edward Meyrick in 1907. It is known from Mysore, India, as well as Sri Lanka. Adults have been recorded in June.

Pseudopostega clastozona is a moth of the family Opostegidae. It was described by Edward Meyrick in 1913. It is known from the area of the former Transvaal Province, South Africa. Adults have been recorded in December and January.

Pseudopsellonus is a genus of spiders in the Philodromidae family. It was first described in 1936 by Balogh. As of 2017, it contains only one species, Pseudopsellonus papuanus, found in New Guinea.

Pseudopostega latiplana is a moth of the family Opostegidae. It was described by Andrius Remeikis and Jonas R. Stonis in 2009. It is known from the Pacific Coast of Mexico. The length of the forewings is 1.8–2 mm. Adults have been recorded in November.

Pseudorationalism

Pseudopostega galapagosae

Pseudoraniceps is an extinct genus of prehistoric bony fish.

In cryptography, a pseudorandom function family, abbreviated PRF, is a collection of efficiently-computable functions which emulate a random oracle in the following way: no efficient algorithm can distinguish (with significant advantage) between a function chosen randomly from the PRF family and a random oracle (a function whose outputs are fixed completely at random). Pseudorandom functions are vital tools in the construction of cryptographic primitives, especially secure encryption schemes. Pseudorandom functions are not to be confused with pseudorandom generators (PRGs). The guarantee of a PRG is that a single output appears random if the input was chosen at random. On the other hand, the guarantee of a PRF is that all its outputs appear random, regardless of how the corresponding inputs were chosen, as long as the function was drawn at random from the PRF family. A pseudorandom function family can be constructed from any pseudorandom generator, using, for example, the "GGM" construction given by Goldreich, Goldwasser, and Micali.. While in practice, block ciphers are used in most instances where a pseudorandom function is needed, they do not, in general, constitute a pseudorandom function family, as block ciphers such as AES are defined for only limited numbers of input and key sizes.

Aujeszky's disease, usually called pseudorabies in the United States, is a viral disease in swine that has been endemic in most parts of the world. It is caused by Suid herpesvirus 1 (SuHV1). Aujeszky's disease is considered to be the most economically important viral disease of swine in areas where classical swine fever (hog cholera) has been eradicated. Other mammals, such as cattle, sheep, goats, cats, dogs, and raccoons, are also susceptible. The disease is usually fatal in these animal species.

Pseudopterogorgia

A pseudorandom encoder is an electro-mechanical device used for measuring distance and finding position. It is different from the conventional absolute and incremental encoder in its disk pattern, which gives it aspects of the other two designs.

Pseudopostega javae is a species of moth of the family Opostegidae. It was described by Puplesis and Robinson in 1999. It is known only from Java in Indonesia.

Pseudopus apodus

Pseudopolynesia hebe

Pseudopostega brevivalva is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from Costa Rica. The length of the forewings is about 2–2.8 mm. Adults have been recorded in February, April and July.

Pseudopsocus meridionalis is a species of Psocoptera from Trichopsocidae family that can be found in Cyprus, France, Germany, Italy, Poland, Spain, and Switzerland.

Pseudopostega spilodes

Pseudoporopterus simulator

Pseudopostega ovatula is a moth of the family Opostegidae. It is known only from lowland and pre-montane Amazonian rainforest in east-central Ecuador. The length of the forewings is 2.1–2.3 mm. Adults are mostly white. Adults are on wing in January.

Pseudopostega brevifurcata is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from the provinces of Heredia and Guanacaste in northern Costa Rica. The length of the forewings is about 2.7 mm. Adults have been recorded in June and October.

Pseudopostega suffuscula

mudgrasses

Pseudopostega bicornuta is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from southern Mexico. The length of the forewings is about 4.6 mm. Adults have been recorded in June.

Pseudopostega nonstrigella

Pseudopostega myxodes is a moth of the family Opostegidae. It was described by Edward Meyrick in 1916. It is known from Bihar, India.

Pseudopostega monosperma

Pseudopringsheimia is a genus of green algae, in the family Ulvellaceae.

Pseudopostega bistrigulella

Pseudoprotoceras

Pseudopostega subtila

Pseudopotto martini

Pseudopostega sumbae is a species of moth of the family Opostegidae. It was described by Puplesis and Robinson in 1999. It is known only from Sumba in Indonesia.

Pseudopostega triangularis is a moth of the family Opostegidae. It known only from the type locality, in the north-central forests of Argentina. The length of the forewings is about 2.6 mm. Adults are on wing in November.

(3S,7R,9S,9aR)-5-Hydroxy-3,6,9-trimethyl-7-(2-methyl-1-propen-1-yl)-2,3,7,8,9,9a-hexahydro-1H-phenalen-4-yl β-(D)-xylopyranoside

Pseudopontia australis

Pseudopostega colognatha

Pseudopostega turquinoensis is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from south-eastern Cuba. The length of the forewings is 2.8–3.3 mm. Adults have been recorded in July.

Pseudopostega brachybasis is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from the state of Tamaulipas in north-eastern Mexico. The length of the forewings is 2.3–2.6 mm. Adults have been recorded in August.

Pseudopostega monstruosa

Pseudoprocris

Pseudopostega nepalensis

Pseudoprotaetia soror

Pseudopsacothea

Pseudopostega didyma

Pseudopostega quadristrigella

Pseudopostega bicornuta

Pseudoproline (also pseudo-proline, ψ-Pro) derivatives are artificially created dipeptides to minimize aggregation during Fmoc solid-phase synthesis of peptides.

Pseudopostega venticola

Pseudopostega dorsalis

Pseudopungtungia tenuicorpus, or the slender shinner is a species of cyprinid fish endemic to the Korean Peninsula.

Pseudopostega plicatella is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from Pará in north-eastern Brazil and east-central Ecuador. The length of the forewings is 2.5–3.2 mm. Adults have been recorded in January.

Pseudopostega sublobata is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is known from Costa Rica and Ecuador. The length of the forewings is 2.1–2.5 mm. Adults have been recorded over much of the year, from February to October in Costa Rica and during January in Ecuador.

Pseudopostega attenuata

Aujeszky's disease, usually called pseudorabies in the United States, is a viral disease in swine that has been endemic in most parts of the world. It is caused by Suid herpesvirus 1 (SuHV1). Aujeszky's disease is considered to be the most economically important viral disease of swine in areas where classical swine fever (hog cholera) has been eradicated. Other mammals, such as cattle, sheep, goats, cats, dogs, and raccoons, are also susceptible. The disease is usually fatal in these animal species. The term "pseudorabies" is found inappropriate by many people, as SuHV1 is a herpesvirus and not related to the rabies virus. Research on SuHV1 in pigs has pioneered animal disease control with genetically modified vaccines. SuHV1 is now used in model studies of basic processes during lytic herpesvirus infection, and for unravelling molecular mechanisms of herpesvirus neurotropism.

Pseudorationalism was the label given by economist and philosopher Otto Neurath to a school of thought that he was heavily critical of, throughout many of his writings but primarily in his 1913 paper "The lost wanderers of Descartes and the auxiliary motive" and later to a lesser extent in his 1935 "Pseudorationalismus der Falsifikation", a review of and attack on Popper's first book, Logik der Forschung (The Logic of Scientific Discovery), contrasting this approach with his own view of what rationalism should properly be. Neurath aimed his criticism at a Cartesian belief that all actions can be subject to rational analysis, saying that

Pseudopostega kempella

Pseudopostega gracilis

Pseudopostega crassifurcata

*Cypraea depauperata (Sowerby, 1832) (original combination)

Pseudopostega strigulata

Pseudopyrausta cubanalis

Pseudoradiarctia pallida

In experimental particle physics, pseudorapidity, , is a commonly used spatial coordinate describing the angle of a particle relative to the beam axis. It is defined as where is the angle between the particle three-momentum and the positive direction of the beam axis. Inversely, As a function of three-momentum , pseudorapidity can be written as where is the component of the momentum along the beam axis (i.e. the longitudinal momentum – using the conventional system of coordinates for hadron collider physics, this is also commonly denoted ). In the limit where the particle is travelling close to the speed of light, or equivalently in the approximation that the mass of the particle is negligible, one can make the substitution (i.e. in this limit, the particle's only energy is its momentum-energy, similar to the case of the photon), and hence the pseudorapidity converges to the definition of rapidity used in experimental particle physics: This differs slightly from the definition of rapidity in special relativity, which uses instead of . However, pseudorapidity depends only on the polar angle of the particle's trajectory, and not on the energy of the particle. One speaks of the "forward" direction in a hadron collider experiment, which refers to regions of the detector that are close to the beam axis, at high ; in contexts where the distinction between "forward" and "backward" is relevant, the former refers to the positive z-direction and the latter to the negative z-direction. In hadron collider physics, the rapidity (or pseudorapidity) is preferred over the polar angle because, loosely speaking, particle production is constant as a function of rapidity, and because differences in rapidity are Lorentz invariant under boosts along the longitudinal axis: they transform additively, similar to velocities in Galilean relativity. A measurement of a rapidity difference between particles (or if the particles involved are massless) is hence not dependent on the longitudinal boost of the reference frame (such as the laboratory frame). This is an important feature for hadron collider physics, where the colliding partons carry different longitudinal momentum fractions x, which means that the rest frames of the parton-parton collisions will have different longitudinal boosts. The rapidity as a function of pseudorapidity is given by where is the transverse momentum (i.e. the component of the three-momentum perpendicular to the beam axis). Using a second order Maclaurin expansion of expressed in one can approximate rapidity by which makes it easy to see that for relativistic particles with , pseudorapidity becomes equal to (true) rapidity. Rapidity is used to define a measure of angular separation between particles commonly used in particle physics , which is Lorentz invariant under a boost along the longitudinal (beam) direction. Often, the rapidity term in this expression is replaced by pseudorapidity, yielding a definition with purely angular quantities: , which is Lorentz invariant if the involved particles are massless. The difference in azimuthal angle, , is invariant under Lorentz boosts along the beam line (z-axis) because it is measured in a plane (i.e. the "transverse" x-y plane) orthogonal to the beam line.

Pseudopostega euryntis

Pseudopsyche exigua

Pseudoporphyria cutanea tarda