pseudosegmentations
plural of pseudosegmentation

pseudosiphon
Any structure that has the appearance of the siphon of a mollusc

pseudosiphons
plural of pseudosiphon

pseudostome
The oral opening on the pseudembryo of an echinoderm.
A false osculum or secondary opening which replaces the original osculum of a sponge.
A false opening that resembles a stoma but without any true aperture.
A North American rodent, Geomys bursarius.

pseudostomes
plural of pseudostome

pseudosuchians
plural of pseudosuchian

pseudotail
An appendage that is similar to a tail in location and gross appearance but which lacks some of the features of a true tail.

pseudotails
plural of pseudotail

pseudothumb
A digit on a vertebrate that resembles but is not a thumb.

pseudothumbs
plural of pseudothumb

pseudotirolitid
Any ammonite in the family Pseudotirolitidae.

pseudotirolitids
plural of pseudotirolitid

pseudotrajectories
plural of pseudotrajectory

pseudotriakid
Any member of the family Pseudotriakidae of false catsharks.

pseudotriakids
plural of pseudotriakid

pseudotriangle
Any subset of a plane that lies between any three mutually tangent convex sets

pseudotriangles
plural of pseudotriangle

pseudotrunk
A false trunk formed by the roots etc. of certain trees.

pseudotrunks
plural of pseudotrunk

pseudotympanum
A translucent, triangular area behind the opercle of some fish (supposed to function in hearing).

pseudotympanums
plural of pseudotympanum

pseudoungulate
Any mammal of the clade Pseudoungulata

pseudoungulates
plural of pseudoungulate

pseudova
plural of pseudovum

pseudovariola
A milder form of smallpox; alastrim.

pseudovum
An egg-like germ produced by the agamic females of some insects and other animals, and by the larvae of certain insects. It is capable of development without fertilization.

psilid
Any member of the Psilidae.

psilids
plural of psilid

psilocerataceans
plural of psiloceratacean

psiloceratid
Any ammonite of family Psiloceratidae.

psiloceratids
plural of psiloceratid.

psittacid
Any member of the family Psittacidae of African and neotropical parrots

psittacids
plural of psittacid

psittaculid
Any parrot in the family Psittaculidae.

psittaculids
plural of psittaculid

psolid
Any member of the family Psolidae of sea cucumbers.

psolids
plural of psolid

psophiid
Any member of the Psophiidae; a trumpeter.

psophiids
plural of psophiid

psorosperm
A minute parasite, usually the young of Gregarinae, in the pseudonavicula stage.

psorosperms
plural of psorosperm

psychedelic frogfish
A species of frogfish, Histiophryne psychedelica, with a yellow-brown or peach colour, together with pink and white stripes arranged in a fingerprint pattern, living in the waters near Ambon Island and Bali, Indonesia.

psychogenomics
psychogenetic genomics

psychostressor
A psychological stressor.

psychostressors
plural of psychostressor

psychotogenesis
The development of psychosis.

psychrolutid
Any member of the family Psychrolutidae; toadfishes.

psychrolutids
plural of psychrolutid

psychrophile
An organism that can live and thrive at temperatures much lower than normal; a form of extremophile.

psychrophiles
plural of psychrophile

psychroteuthid
Any squid in the family Psychroteuthidae.

psychroteuthids
plural of psychroteuthid

psychrotroph
An organism adapted to cold.

psychrotrophs
plural of psychrotroph

ptarmus
A sneeze; sneezing; especially spasmodic sneezing.

pteranodon
A member of Pteranodon, a genus of large pterosaurs, the males of which had a bony crest on the back of the head.

pteranodons
plural of pteranodon

pteraspidomorph
Any member of the Pteraspidomorphi, an extinct class of early jawless fish.

pteraspidomorphs
plural of pteraspidomorph

pteriid
Any clam of the family Pteriidae.

pteriids
plural of pteriid

pterioidean
Any bivalve mollusc of the superfamily Pterioidea

pterioideans
plural of pterioidean

pteriomorphian
Any bivalve mollusc of the subclass Pteriomorphia

pteriomorphians
plural of pteriomorphian

pterippi
plural of pterippus.

pterippus
A winged horse; Pegasus.

pterobranch
Any filter feeder of the class Pterobranchia

pterobranches
plural of pterobranch

pterobranchs
plural of pterobranch

pterolyses
plural of pterolysis

pterolysis
The arrangement of different feathers in different parts of a bird

pteromalid
Any member of the family Pteromalidae of parasitic wasps.

pterophore
Any moth of Pterophorus and allied genera; a plume moth.

pterophores
plural of pterophore

pteropid
Any bat of the former family Pteropidae; the fruit bats

pteropids
plural of pteropid

pteropodid
Any of the bat family Pteropodidae.

pteropodids
plural of pteropodid

pterosphenoid
Either of a pair of endochondral bones in the skull of some fish

pterosphenoids
plural of pterosphenoid

pterothorax
The mesothorax and metathorax of an insect

pterotillomania
A behavioural disorder in birds in which a bird plucks out its own feathers, or plucks the feathers of its chicks.

pterygometopid
Any trilobite in the family Pterygometopidae.

pterygometopids
plural of pterygometopid

pterygotioid
Any member of the Pterygotioidea superfamily of extinct eurypterids

pterygotioids
plural of pterygotioid

pterygotoid
Any member of the Pterygotioidea superfamily

pteryla
One of the areas of a bird's skin on which feathers grow.

pterylae
plural of pteryla

pterylas
plural of pteryla

pteryloses
plural of pterylosis

pterylosis
The particular arrangement of feathers on a bird.

pthiriasis
Phthiriasis.

ptilonorhynchid
A member of the Ptilonorhynchidae; a bower bird.

ptilonorhynchids
plural of ptilonorhynchid

ptiloses
plural of ptilosis

ptilosis
The appearance or study of feathers on a bird, including factors such as their texture or shape.
Loss of the eyelashes, due to ulceration or other damage to the follicles.

ptinid
Any in the family Ptinidae of beetles.

ptinids
plural of ptinid

ptomatropine
A poisonous atropine-like base found in decomposing meat and fish.

ptychaspidid
Any trilobite in the family Ptychaspididae.

ptychaspidids
plural of ptychaspidid

ptychitid
Any ammonite in the family Ptychitidae.

ptychitids
plural of ptychitid

ptychopariid
Any trilobite of the order Ptychopariida.

ptychopariids
plural of ptychopariid

ptychopterid
Any member of the Ptychopteridae.

ptychopterids
plural of ptychopterid

ptyctodontidan
Any member of the Ptyctodontida order of extinct placoderms.

puckaun
A he-goat.

puckauns
plural of puckaun

puckawn
Alternative form of puckaun.

puddingwife wrasse
Halichoeres radiatus, an American wrasse.

puff adder
Any viper or adder in genus Bitis,
Any viper or adder in genus Bitis,

puffadder
Alternative form of puff adder.

puffadders
plural of puffadder

puffbird
Any of various tropical passerine birds in the family Bucconidae, related to the jacamars.

puffer
Someone or something that puffs.
Any of several poisonous fish, of the family Tetraodontidae, which have the ability to inflate their bodies when in danger.
A manually-operated inhaler.
A train; a locomotive, usually one that is steam-powered.
A Clyde puffer, a kind of small ship.
A car left idling to warm up, emitting steam from the rear.
An insulated puffy jacket, such as a down jacket.
A person who gives exaggerated praise to a product, literary work, etc.
One who is employed by the owner or seller of goods sold at auction to bid up the price; a by-bidder.
An alchemist; so named from their constant attendance to the bellows of their furnaces.
The common, or harbour, porpoise.
A kier used in dyeing.
A soffietta.
A finite pattern that moves like a spaceship but leaves a trail of debris.
A security device used to detect traces of explosives or drugs on a person, by blowing puffs of air that pick up tiny particles.