prodissoconch
The embryonic shell of the larva of a bivalve mollusc.

prodissoconches
plural of prodissoconch

prodissoconchs
plural of prodissoconch

prodromitid
Any ammonite in the family Prodromitidae.

prodromitids
plural of prodromitid

productid
Any member of the Productidae.

productids
plural of productid

productoid
Any member of the suborder Productoidea, a large group of Upper Paleozoic brachiopods.

productoids
plural of productoid

proepisternum
The episternum of the prothorax of an insect

proetid
Any trilobite of the order Proetida.

proetids
plural of proetid

profurcasternum
The posterior part of the prosternum of some insects

progenesis
precocious sexual reproduction (especially in nematodes)

progenome
An RNA transcript of a genome

progenomes
plural of progenome

proglottidization
The development of proglottid segments of a tapeworm.

prokaryote
An organism whose cell (or cells) are characterized by the absence of a nucleus or any other membrane-bound organelles.
In the two-empire system of biological taxonomy, an organism of the kingdom Prokaryotae (now superseded).

prokaryotes
plural of prokaryote

prolarva
An undeveloped larva that lacks a mouth

prolarvae
plural of prolarva

prole
A member of the proletariat; a proletarian.
A pleb (ordinary person).

proleg
An appendage of the abdomen of some insect larvae, such as caterpillars, which is used like a leg.

prolegs
plural of proleg

proles
plural of prole

proletarians
plural of proletarian

prolobitid
Any ammonite in the family Prolobitidae.

prolobitids
plural of prolobitid

prologomena
plural of prologomenon

prometamorphosis
The initial stage of amphibian metamorphosis

promoterome
(the study of) all the genetic promoters of an organism

promoteromes
plural of promoterome

pronephron
The first part of the urogenital system to be differentiated in a vertebrate embryo, which functions as a simple excretory organ in simpler forms, serves as a provisional kidney in some fish and amphibians, and only appears as a temporary embryonic structure in reptiles, birds, and mammals.

pronephrons
plural of pronephron

pronggill
a prong-gilled mayfly, any insect in the Leptophlebiidae family

pronggills
plural of pronggill

pronymph
An arthropod hatchling still inside its embryonic cuticle, often specialized for breaking the eggshell or leaving the oviposition site; a prolarva.
A prepupa with externally visible pupal traits.

pronymphs
plural of pronymph

proped
Synonym of proleg.

propeds
plural of proped

prophalangopsid
Any member of the Prophalangopsidae, the grigs.

prophalangopsids
plural of prophalangopsid

prophies
plural of prophy

prophy
Cleaning and polishing of an animal's teeth.

proplasm
Alternative form of plasm (“matrix, mould”).

proplasms
plural of proplasm

propleg
A proleg.

proplegs
plural of propleg

propleura
plural of propleuron
plural of propleurum

propleuron
The lateral sclerite of the anterior division of the thorax of an insect

propleurum
Alternative form of propleuron.

propodi
plural of propodus

propodia
plural of propodium

propodite
The sixth joint of a typical leg of a crustacean, usually the penultimate joint.
One of the muscles responsible for moving the propodite.

propodites
plural of propodite

propodium
The anterior portion of the foot of a mollusk.
The first abdominal segment, when it forms a unit with the thorax of a hymenopterous insect in the group Apocrita.

propodus
The propodite of the limb of a crustacean

propoganda
Misspelling of propaganda.

propoma
In Ancient Greece, a drink served as an appetizer.

proporid
Any member of the Proporidae.

proporids
plural of proporid

prosciurine
Any squirrel of the genus Prosciurillus

prosciurines
plural of prosciurine

proscolex
An early larval form of a trematode worm; a redia.

proscolices
plural of proscolex

prosecutor
A prosecuting attorney.
A person, as a complainant, victim, or chief witness, who institutes prosecution in a criminal proceeding.

prosecutors
plural of prosecutor

prosoma
The front segment of a body which is divided into two or more segments, especially the cephalothorax of an arachnid or crustacean.

prosomas
plural of prosoma

prosomata
plural of prosoma

prostegostom
The anteriormost section of the stegostom, sometimes fused with the mesostegostom.

prostigmatid
Any mite of the suborder Prostigmata

prostigmatids
plural of prostigmatid

prostomia
plural of prostomium

prostomium
The portion of the head of an annelid situated in front of the mouth.

protamoeba
A member of the Protamoebae.

protamoebae
plural of protamoeba

protamoebas
plural of protamoeba

protarsi
plural of protarsus

protarsomere
An anterior tarsomere

protarsomeres
plural of protarsomere

protarsus
The tarsus of the foreleg of an insect

protaspides
plural of protaspis

protaspis
A stage in the development of a trilobite where the creature has not yet developed articulated segments.

protectrices
plural of protectrix

protectrix
A female who protects.

protelid
Any member of the Protelidae.

protelids
plural of protelid

proteogenome
A proteomic genome

proteogenomes
plural of proteogenome

proteroglyph
Any proteroglyphous snake.

proteroglyphs
plural of proteroglyph

proterosuchid
Any member of the family †Proterosuchidae of archosaurs

proterosuchids
plural of proterosuchid

protestants
plural of protestant

prothetely
The abnormal development of parts of an insect larva, often as a result of abnormal conditions

prothoraces
plural of prothorax

prothorax
The anterior segment of the insect thorax; it carries the first pair of legs.

prothoraxes
plural of prothorax

protist
Any of the eukaryotic, usually unicellular organisms—including protozoans, slime molds and some algae—historically grouped into the kingdom Protista (or Protoctista), now distributed over several clades; any eukaryote that is not a plant, animal or fungus.
Any of the eukaryotic, usually unicellular organisms—including protozoans, slime molds and some algae—historically grouped into the kingdom Protista (or Protoctista), now distributed over several clades; any eukaryote that is not a plant, animal or fungus.
Any of the eukaryotic, usually unicellular organisms—including protozoans, slime molds and some algae—historically grouped into the kingdom Protista (or Protoctista), now distributed over several clades; any eukaryote that is not a plant, animal or fungus.
Any of the eukaryotic, usually unicellular organisms—including protozoans, slime molds and some algae—historically grouped into the kingdom Protista (or Protoctista), now distributed over several clades; any eukaryote that is not a plant, animal or fungus.

protists
plural of protist

protobird
Any of several extinct animals proposed as an evolutionary link between fossil reptiles and fossil birds; a proavian.

protobirds
plural of protobird

protoblattoid
A member of the extinct insect order Protoblattoidea.

protoblattoids
plural of protoblattoid

protobranch
Any bivalve mollusc of the subclass Protobranchia

protobranchs
plural of protobranch

protochordates
plural of protochordate

protocoelomate
Any primitive animal that evolved into the coelomates

protocoelomates
plural of protocoelomate

protogen
A fictional anthropomorphic (furry) cyborg with a robotic chest and thighs, and a visor screen upon which the creature's face is displayed.

protogenesis
abiogenesis

protogens
plural of protogen

protome
A decorative element, on ancient artefacts, based on the head of an animal or bust of a person.

protomes
plural of protome

protomitochondria
plural of protomitochondrion

protomitochondrion
The ancestral bacterial endosymbiont from which all mitochondria are thought to be derived

protomullet
A mulletlike hairstyle which is shorter than a full-fledged mullet or which preceded the popularization of the mullet in the 1980s.

protomullets
plural of protomullet

protonymph
The instar between larva and deutonymph

protonymphs
plural of protonymph