nemertodermatids
plural of nemertodermatid

nemourid
Any stonefly in the family Nemouridae.

nemourids
plural of nemourid

neobodonid
Any protozoan of the order Neobodonida

neobodonids
plural of neobodonid

neocentrophyid
Any kinorhynch of the family Neocentrophyidae.

neocentrophyids
plural of neocentrophyid

neoceratodontid
Any lungfish of the family Neoceratodontidae

neoceratodontids
plural of neoceratodontid

neoechinorhynchid
Any acanthocephalan in the family Neoechinorhynchidae.

neoechinorhynchids
plural of neoechinorhynchid

neokaryote
Any organism of the clade Neokaryotes.

neolepetopsid
Any limpet in the family Neolepetopsidae.

neolepetopsids
plural of neolepetopsid

neoschwagerinid
Any foraminifer of the family Neoschwagerinidae

neoschwagerinids
plural of neoschwagerinid

neospecies
A newly- discovered, characterised or named species

neozoa
plural of neozoan

neozoan
Any protozoan of the infrakingdom Neozoa

neozoans
plural of neozoan

neurorthid
Alternative form of nevrorthid.

neurorthids
plural of neurorthid

neurulae
plural of neurula

neurulas
plural of neurula

neutralophile
Any organism that thrives in a relatively neutral pH range

neutralophiles
plural of neutralophile

neutrophile
Any organism that thrives in a relatively neutral pH.

neutrophiles
plural of neutrophile

nevrorthid
Any lacewing in the family Nevrorthidae.

nevrorthids
plural of nevrorthid

nicoletiid
Any of the primitive wingless insects in the family Nicoletiidae.

nicoletiids
plural of nicoletiid

nielsbohrium
A rejected name for dubnium (105).
A rejected name for bohrium (107).

nimravid
Any of the large extinct feliforms of the family Nimravidae, of the Middle to Late Miocene (40—7 million years ago).

nimravids
plural of nimravid

nitrobacter
Any bacterium of the genus Nitrobacter.

nitrobacters
plural of nitrobacter

nitrosomonad
Any of the genus Nitrosomonas of rod-shaped chemoautotrophic bacteria.

nitrosomonads
plural of nitrosomonad

nogodinid
Any fulgoroid planthopper in the family Nogodinidae.

nogodinids
plural of nogodinid

nomogenesis
A former theory of evolution, claiming that the variation of characters in species is confined within certain limits due to internal and external factors.

nonacidophile
Any organism that is not acidophilic

nonacidophiles
plural of nonacidophile

nonangiosperm
Any organism that is not an angiosperm

nonangiosperms
plural of nonangiosperm

nonchromogen
A microorganism that is not a chromogen; in particular, a member of a group of mycobacterium that do not produce pigmentation.

nonchromogens
plural of nonchromogen

nondinoflagellate
Any protozoan that is not a dinoflagellate

nondinoflagellates
plural of nondinoflagellate

nonion
Any foraminifer of the family Nonionidae.

nonions
plural of nonion

nonphotochromogen
Any organism that is not a photochromogen.

nonphotochromogens
plural of nonphotochromogen

nontrilobite
Any organism that is not a trilobite.

nontrilobites
plural of nontrilobite

norium
A rejected name for hafnium.

normalograptid
Any graptolite of the genus Normalograptus.

normobiosis
The normal state of having a range of bacteria in the gut

norspermidine
The triamine N-(3-aminopropyl)propane-1,3-diamine that occurs in some plants and bacteria

norwegium
A rejected name for hafnium.

nostocalean
Any cyanobacterium of the order Nostocales

nostocaleans
plural of nostocalean

nostopeptolide
A peptolide present in cyanobacteria of the genus Nostoc

nothogenera
plural of nothogenus

nothogenus
A genus denoting a hybrid or cross.

nothospecies
A hybrid which is formed by direct hybridization of two species, not other hybrids.

nothosubspecies
A hybrid which is formed by direct hybridization of two subspecies, not other hybrids.

nothotaxa
plural of nothotaxon

nothotaxon
Any of certain taxonomic names for organism that are hybrids of natural taxa, not of hybrids.

notocotylid
Any trematode of the family Notocotylidae

notocotylids
plural of notocotylid

notohippid
Any toxodont in the family Notohippidae.

notohippids
plural of notohippid

notostylopid
Any notoungulate in the family Notostylopidae.

notostylopids
plural of notostylopid

notothenid
Any icefish of the family Nototheniidae

notothenids
plural of notothenid

nucleariid
Any of a group of amoeba possessing threadlike pseudopodia.

nucleariids
plural of nucleariid

nucleotype
Any of a group of organisms that have the same nucleotypic properties

nucleotypes
plural of nucleotype

nummulite
A protozoan from the Tertiary period, known only as fossils.

nummulites
plural of nummulite

nummulitid
Any in the family Nummulitidae of foraminifers.

nummulitids
plural of nummulitid

nunlet
Any of several species of puffbirds in the genus Nonnula.

nunlets
plural of nunlet

nycteroleterid
Any parareptile of the family Nycteroleteridae.

nycteroleterids
plural of nycteroleterid

nyctibiid
Any potoo in the family Nyctibiidae.

nyctibiids
plural of nyctibiid

nyctiphruretid
Any parareptile in the family Nyctiphruretidae.

nyctiphruretids
plural of nyctiphruretid

obazoan
Any organism of the clade Obazoa.

obazoans
plural of obazoan

obelin
A calcium-regulated bioluminescent photoprotein from marine organisms of the genus Obelia.

oblongichytrid
Any heterokont of the genus Oblongichytrium

oblongichytrids
plural of oblongichytrid

ochrophyte
Any heterokont of the phylum Ochrophyta

ochrophytes
plural of ochrophyte

odontopathogen
A dental pathogen

odontopathogens
plural of odontopathogen

odortype
An odor, determined by polymorphic genes, that distinguishes one individual from another of the same species.

odortypes
plural of odortype

odourtype
Alternative form of odortype.

odourtypes
plural of odourtype

oganessium
A rejected name for oganesson

oligacanthorhynchid
Any acanthocephalan in the family Oligacanthorhynchidae.

oligacanthorhynchids
plural of oligacanthorhynchid

oligohymenophorean
Any ciliate of the class Oligohymenophorea

oligohymenophoreans
plural of oligohymenophorean

oligotrich
Any of a group of ciliate protozoa, included among the spirotrichs, with prominent oral cilia, which are arranged as a collar and lapel, in contrast to the choreotrichs where they form a complete circle

oligotrichid
Any ciliate of the order Oligotrichida

oligotrichids
plural of oligotrichid

oligotrichs
plural of oligotrich

omnicide
The total extinction of the human species as a result of human action. Most commonly it refers to human extinction through nuclear warfare, but it can also refer to such extinction through other means such as global anthropogenic ecological catastrophe.
Someone or something that causes total destruction.

omnicides
plural of omnicide

onchobothriid
Any tapeworm of the family Onchobothriidae

onchobothriids
plural of onchobothriid

oncopathogen
Any oncogenic pathogen

oncopathogens
plural of oncopathogen

oniscid
Any of the Oniscidae; a woodlouse.

oniscidean
Any of the terrestrial isopod crustaceans of suborder Oniscidea; a woodlouse.

oniscideans
plural of oniscidean

oniscids
plural of oniscid

onychiurid
Any springtail of the family Onychiuridae

onychiurids
plural of onychiurid

oophoridia
plural of oophoridium

oophoridium
The macrosporangium or case for the larger kind of spore in heterosporous flowerless plants.

oophyte
gametophyte

oophytes
plural of oophyte

opalinid
Any heterokont in the family Opalinidae.

opalinids
plural of opalinid

ophiacanthid
Any brittle star of the family Ophiacanthidae

ophiacanthids
plural of ophiacanthid

ophiacodontid
Any synapsid in the family Ophiacodontidae.

ophiacodontids
plural of ophiacodontid

ophiactid
Any brittle star in the family Ophiactidae.

ophiactids
plural of ophiactid

ophiderpetontid
Any tetrapod in the family Ophiderpetontidae.

ophiderpetontids
plural of ophiderpetontid

ophidiid
Any in the family Ophidiidae of cusk-eels.

ophidiids
plural of ophidiid

ophidioid
Any of the family Ophidiidae of cusk-eels.

ophidioids
plural of ophidioid