redtail sharkminnow
Synonym of red-tailed black shark.

reduviids
plural of reduviid

reedfish
Erpetoichthys calabaricus

reedfishes
plural of reedfish

reermice
plural of reermouse

reermouse
Alternative form of reremouse.

refaunation
The reintroduction of animals into an environment (following a previous defaunation)

refaunations
plural of refaunation

refringencies
plural of refringency

refringency
The power of a substance to refract a ray.

regaler
One who regales.

regalers
plural of regaler

regeneses
plural of regenesis

regina
Alternative letter-case form of Regina (“queen”).

reginas
plural of regina

registrarius
A notary
The official custodian of records of a court

regroupee
A member of the southern Viet Minh who resettled in the north after the Geneva Accord of 1954.

regroupees
plural of regroupee

regulars
plural of regular
A thief's share in the stolen money or goods.

regulatome
All the regulatory metabolic pathways of an organism

regulatomes
plural of regulatome

regurgitalith
The fossilised remains of stomach contents regurgitated by an animal.

regurgitaliths
plural of regurgitalith

reineckeid
Any member of the Reineckeidae.

reineckeids
plural of reineckeid

rejectamenta
Things that are thrown away or rejected; items with little or no value waste, rubbish, garbage, refuse, ejecta

religofascists
plural of religofascist

remex
A quill.
The flight feather of a bird.

remige
A remex (quill, feather).

remiges
plural of remex

remingtonocetid
Any member of the family Remingtonocetidae.

remingtonocetids
plural of remingtonocetid

remizid
Any bird in the Remizidae, the penduline tits.

remizids
plural of remizid

remora
Any of various elongate fish from the family Echeneidae, the dorsal fin of which is in the form of a suction disc that can take a firm hold against the skin of larger marine animals.
A serpent.
A delay; a hindrance, an obstacle.
A surgical instrument, intended to retain parts in their places.

remorae
plural of remora.

remoras
plural of remora

repertories
plural of repertory

repichnion
A trace fossil that represents the locomotion behaviours of an organism.

replacist
A member of the elite that is said to be assisting in the implementation of the Great Replacement.

replacists
plural of replacist

representatives
plural of representative

reptiles
plural of reptile

reptiloid
A reptilian humanoid creature.

reptiloids
plural of reptiloid

requiem
A Mass (especially Catholic) to honor and remember a dead person.
A musical composition for such a mass.
A piece of music composed to honor a dead person.
Rest; peace.

requiems
plural of requiem

requietories
plural of requietory

requin
The great white shark (Carcharodon carcharias).

requins
plural of requin

reremai
The basking shark.

reremice
plural of reremouse

reremouse
A bat (flying mammal).

respawner
An organism that spawns again.
An object in the game world that respawns things.

respawners
plural of respawner

respirer
An organism that respires.

respirers
plural of respirer

retepore
Any of several species of bryozoans of the genus Reteporella (syn. Retepora) or the family Reteporidae, that form delicate calcareous corals, usually composed of thin fenestrated fronds.

retepores
plural of retepore

retic
Reticulated python.
Reticulocyte.

retics
plural of retic

reticulated python
Malayapython reticulatus, a species of python found in Southeast Asia, that is the world's longest snake.

reticulitis
inflammation of the reticulum of a ruminant animal

reticuloceratid
Any member of the Reticuloceratidae.

reticuloceratids
plural of reticuloceratid

retroflector
retroreflector

retroflectors
plural of retroflector

retromargin
The posterior margin of the fang furrow in the chelicera.

retromargins
plural of retromargin

retropinnid
Any member of the family Retropinnidae; smelts of Australia and New Zealand.

retropinnids
plural of retropinnid

retrovaccination
The inoculation of a cow with human vaccine virus.

retrovaccinations
plural of retrovaccination

retusid
Any member of the family Retusidae of gastropods.

retusids
plural of retusid

reverends
plural of reverend

rhabditid
nematode in the family Rhabditidae.
Any nematode in the order Rhabditida.

rhabditids
plural of rhabditid

rhabdodontid
Any dinosaur in the family Rhabdodontidae.

rhabdodontids
plural of rhabdodontid

rhachitome
Any amphibian of the clade Rhachitomi.

rhachitomes
plural of rhachitome

rhaeb
Alternative form of raeb.

rhamphastid
Misspelling of ramphastid.

rhamphastids
plural of rhamphastid

rhamphotheca
A thin horny sheath of keratin on the outer surface of a bird's beak

rhamphothecae
plural of rhamphotheca

rhaphidophorid
Any member of the family Rhaphidophoridae, the cave crickets or camel crickets.

rhaphidophoridan
Any insect (such as cave crickets) of the superfamily Rhaphidophoridae

rhaphidophoridans
plural of rhaphidophoridan

rhaphidophorids
plural of rhaphidophorid

rhegma
A rupture or fracture.
Alternative form of regma.

rhegmas
plural of rhegma

rheid
Any member of the Rheidae; a rhea.

rheids
plural of rheid

rheostasis
The regulation of some aspect of a biological organism in a changing environment.

rhinaster
the black rhinoceros

rhinasters
plural of rhinaster

rhinatrematid
Any caecilian in the family Rhinatrematidae.

rhinatrematids
plural of rhinatrematid

rhineurid
Any lizard in the family Rhineuridae.

rhineurids
plural of rhineurid

rhino
Money.

rhinocerase
A serine protease isolated from the Gaboon viper Bitis rhinoceros (syn. of Bitis gabonica).

rhinocerases
plural of rhinocerase

rhinocerot
The rhinoceros.

rhinocerothid
Misspelling of rhinocerotid.

rhinocerotid
Any member of the family Rhinocerotidae, the rhinoceroses.

rhinocerotids
plural of rhinocerotid

rhinocerots
plural of rhinocerot

rhinoliths
plural of rhinolith

rhinolophid
Any of the genus Rhinolophus or family Rhinolophidae; a horseshoe bat.

rhinolophids
plural of rhinolophid

rhinolophoid
Any bat of the superfamily Rhinolophoidea

rhinolophoids
plural of rhinolophoid

rhinopomatid
Any member of the family Rhinopomatidae of bats; mouse-tailed bats.

rhinopomatids
plural of rhinopomatid

rhinopome
Any member of the bat genus Rhinopoma.

rhinopomes
plural of rhinopome

rhinotermitid
Any termite in the family Rhinotermitidae.

rhinotermitids
plural of rhinotermitid

rhinotheca
The hornlike covering of the upper part of a bird's beak.

rhipidium
A scorpioid cyme whose successive pedicels follow a zigzag path on the same plane.

rhipidoglossan
Any member of the Rhipidoglossa.

rhipidoglossans
plural of rhipidoglossan

rhizocephalan
Any member of the Rhizocephala.

rhizocephalans
plural of rhizocephalan

rhizopod
A member of the taxonomic superclass of Rhizopoda, being a type of amoeboid single-cell life with pseudopods not supported by a regular array of microtubules.

rhizopods
plural of rhizopod

rhizostomid
Any jellyfish of the genus Rhizostoma

rhizostomids
plural of rhizostomid

rhodolith
A benthic marine red alga that resembles coral

rhodoliths
plural of rhodolith

rhomb
A rhombus.
A rhombohedron.

rhombi
plural of rhombus

rhombogen
The infusoriform embryo of a nematoid worm.

rhombogens
plural of rhombogen

rhombs
plural of rhomb

rhombus
A parallelogram having all sides of equal length.
A parallelogram having all sides of equal length.
In early Greek religion, an instrument whirled on the end of a string similar to a bullroarer.
Any of several flatfishes, including the brill and turbot, once considered part of the genus Rhombus, now in Scophthalmus.
Snails, now in genus Conus or family Conidae.

rhombuses
plural of rhombus

rhopalium
One of the small sensory tentacular structures of various jellyfish species.

rhynchocephalian
Any of a group of reptiles of the order Rhynchocephalia; a tuatara.

rhynchocephalians
plural of rhynchocephalian

rhynchocoel
A nemertean worm of the former phylum Rhynchocoela
A tubular cavity, in such worms and other organisms, enclosing a proboscis