periople
The external smooth horny layer of a hoof.

perioples
plural of periople

peripatus
Any onychophoran of the genus Peripatus

peripatuses
plural of peripatus

periplanone
Any of a group of sex pheromones produced by the female American cockroach Periplaneta americana.

periplanones
plural of periplanone

peripteries
plural of periptery

periptery
The region surrounding a moving body, such as the wing of a bird or a gliding aeroplane, within which cyclic or vortical motion of the air occurs.
A building surrounded by a wing or row of columns.

perisoma
A perisome.

perisome
The outer body of an invertebrate; the integument

perisomes
plural of perisome

perisphinctid
Any ammonite in the family Perisphinctidae.

perisphinctids
plural of perisphinctid

perisphinctoid
Any member of the Perisphinctoidea superfamily of ammonites.

perisphinctoids
plural of perisphinctoid

peritreme
That part of the integument of an insect which surrounds the spiracles.
The edge of the aperture of a univalve shell.

peritremes
plural of peritreme

perkinsid
Any member of the family Perkinsidae.

perkinsids
plural of perkinsid

peroryctid
Any member of the family Peroryctidae (now subfamily Peroryctinae of family Peramelidae) of bandicoots.

peroryctids
plural of peroryctid

perpyne
A 16th-century French gold coin bearing a porcupine emblem.

perpynes
plural of perpyne

perrinitid
Any ammonite in the family Perrinitidae.

perrinitids
plural of perrinitid

perrisodactyls
plural of perrisodactyl

perseids
plural of perseid

personid
Any member of the family Personidae of molluscs.

personids
plural of personid

perthamide
Any of a group of cyclopeptides present in marine sponges of the genus Theonella

perthamides
plural of perthamide

peryton
A fictional creature having the head and forelegs of a stag and the wings and hindquarters of a bird.
A radio signal which appears to come from outside the galaxy but is actually produced by terrestrial sources.

perytons
plural of peryton

pes
the foot of a human
the hoof of a quadruped
clubfoot or talipes
a neume representing two notes ascending

pesade
A dressage movement in which a horse raises its forequarters and keeps its hind feet on the ground, without advancing; rearing.

pesades
plural of pesade

pest
A pestilence, i.e. a deadly epidemic, a deadly plague.
Any destructive insect that attacks crops or livestock; an agricultural pest.
An annoying person, a nuisance.
An animal regarded as a nuisance, destructive, or a parasite, vermin.
An invasive weed.

pesticide
Anything, especially a synthetic substance but also any substance (e.g. sulfur), or virus, bacterium, or other organism, which kills or suppresses the activities of pests.

pesticides
plural of pesticide

pests
plural of pest

petalonamid
Any of the extinct phylum †Petalonamae of motionless archaic animals that resemble leaves.

petalonamids
plural of petalonamid

petauristid
Any member of the genus Petaurista, including some flying squirrels.

petauristids
plural of petauristid

petfluencer
An animal used as an influencer.
A human influencer who uses an animal for this purpose.

petfluencers
plural of petfluencer

petiquette
Good manners of a pet animal, or when dealing with pet animals.

petkeeping
The keeping of domestic animals, or pets.

petplay
A form of sexual roleplay in which one or more players take on the role of an animal, especially as the pet of another.

petrale sole
Any of species Eopsetta jordani of edible demersal flatfish.

petrocortyne
Any of a group of cytotoxic polyacetylenes extracted from marine sponges of the family Petrosiidae

petrocortynes
plural of petrocortyne

petromyzonid
Alternative form of petromyzontid (family).

petromyzonids
plural of petromyzonid

petromyzontid
Any of the Petromyzontida, a group of jawless fish including the modern lampreys and their fossil relatives.
Any jawless fish in the family Petromyzontidae.

petromyzontids
plural of petromyzontid

petrosomatoglyph
An impression of part of a human or animal body incised in rock

petrosomatoglyphs
plural of petrosomatoglyph

pettichaps
Archaic form of pettychaps.

pettifogger
Someone who quibbles over trivia, and raises petty, annoying objections and sophistry.
An unscrupulous or unethical lawyer, especially one of lesser skill.

pettifoggers
plural of pettifogger

pettychaps
Any of several species of small European passerine songbirds, including the willow warbler (Phylloscopus trochilus), the chiffchaffs (Phylloscopus spp.), and the western Orphean warbler (Sylvia hortensis).

petun
Tobacco, especially in the context of its early acquisition from Native Americans by the French.

phacochere
The warthog.

phacocheres
plural of phacochere

phacochoere
The warthog Phacochoerus aethiopicus

phacochoeres
plural of phacochoere

phacochoerid
phacochoere

phacochoerids
plural of phacochoerid

phacoliths
plural of phacolith

phacopid
Any trilobite of the order Phacopida.

phacopide
Synonym of phacopid.

phacopids
plural of phacopid

phaegopterine
Any of the subtribe Phaegopterina of tiger moths.

phaegopterines
plural of phaegopterine

phaeophycean
Any member of the Phaeophyceae; a brown alga.

phaeophyceans
plural of phaeophycean

phaethontid
Any member of the Phaethontidae, a tropicbird.

phaethontids
plural of phaethontid

phaeton
a light four-wheeled open carriage drawn by four horses
a large open touring motorcar with a folding top

phaetons
plural of phaeton

phagodeterrence
The deterrence of an organism from eating something.

phagomyxid
Any single-celled plant parasite of the order Phagomyxida

phagomyxids
plural of phagomyxid

phagotroph
Any phagotrophic organism

phagotrophs
plural of phagotroph

phalangeriform
Any marsupial of the suborder Phalangeriformes

phalangeriforms
plural of phalangeriform

phalangiid
Any member of species of the family Phalangiidae of harvestman spiders.

phalangiids
plural of phalangiid

phalangists
plural of phalangist

phalangodid
Any member of the family Phalangodidae.

phalangodids
plural of phalangodid

phanaeine
Any of several dung beetles of the genus Phanaeus.

phanaeines
plural of phanaeine

phanerozone
Any phanerozonate starfish

phanerozones
plural of phanerozone

phantom shiner
A fish of species Notropis orca, previously endemic to Texas and Mexico, presumed extinct as of 1996.

pharid
Any member of the family Pharidae of clams.

pharids
plural of pharid

pharyngula
The phylotypic stage of embryonic development of vertebrate animals, following the blastula, gastrula, and neurula.

phascolome
A marsupial of the former genus Phascolomys; a wombat.

phascolomes
plural of phascolome

phascolosomatids
plural of phascolosomatid

phasome
The phase-variable genes of an organism

phasomes
plural of phasome

phenacodont
Alternative form of phenacodontid.

phenacodontid
Any member of the family †Phenacodontidae of extinct large herbivorous mammals.

phenacodontids
plural of phenacodontid

phenacodonts
plural of phenacodont

phengodid
Any of the family Phengodidae of glowworm beetles.

phengodids
plural of phengodid

phenicopter
A flamingo.

phenicopters
plural of phenicopter

phenoplasticity
phenotypic plasticity - the ability of an organism to change its phenotype in response to changes in the environment

pheremone
Misspelling of pheromone.

pheromone
A chemical secreted by an animal, especially an insect, that affects the development or behavior of other members of the same species, functioning often as a means of attracting a member of the opposite sex.

pheromones
plural of pheromone

philaid
Any member of the Philaidae.

philaids
plural of philaid

philinoid
Any member of the superfamily Philinoidea of sea slugs.

philinoids
plural of philinoid

philip
English sparrow, house sparrow (Passer domesticus)

phillipsiid
Any trilobite in the family Phillipsiidae.

phillipsiids
plural of phillipsiid

philobryid
Any clam in the family Philobryidae.

philobryids
plural of philobryid