vibriolysin
A thermostable form of thermolysin present in bacteria of the genus Vibrio.

vibrion
A microorganism, especially one that is pathogenic.

vibrionacean
Any proteobacterium of the family Vibrionaceae.

vibrionaceans
plural of vibrionacean

vibrions
plural of vibrion

vicariance
The separation of a group of organisms by a geographic barrier, resulting in differentiation of the original group into new varieties or species.
The geological event which produces such a barrier (volcano, earthquake, etc)
The act of experiencing an event by proxy through an empathic link with the person who is experiencing the event firsthand.

vicariances
plural of vicariance

vicarianism
The biogeographical theory that vicariance is responsible for the differences between species.

violetear
Any of the American hummingbirds of the genus Colibri, whose males have a violet-blue patch running back and down from the eye.

violetears
plural of violetear

virginium
A rejected name for francium.

virocell
Any cell, infected by a virus, whose primary function is to produce virions

virulome
The set of genes that contribute to the virulence of a bacterium.

virulomes
plural of virulome

virulotype
A microorganism that has a specified virulence

virulotypes
plural of virulotype

volutin
A granular nucleoprotein complex found in the cytoplasm of some bacteria, yeasts and protozoa.

volvocacean
Any biflagellate of the family Volvocaceae

volvocaceans
plural of volvocacean

vombatid
Any wombat of the family Vombatidae

vombatids
plural of vombatid

vromindoline
Any of a group of indolines present in oats of the genus Avena.

vromindolines
plural of vromindoline

wallaby
Any of several species of macropod; usually smaller and stockier than kangaroos.

warnowiid
Any dinoflagellate of the genus Warnowia

warnowiids
plural of warnowiid

whipbird
Any of various Australian songbirds in the genus Psophodes.

whipnose
An anglerfish of the family Gigantactinidae.

whipnoses
plural of whipnose

whipworm
Any of the genus Trichuris of roundworms that infect certain mammals
Any of the genus Trichuris of roundworms that infect certain mammals
Trichuriasis, infection by members of the genus Trichuris.

whipworms
plural of whipworm

whitestart
Any of various New World warblers in the family Parulidae, related to the redstarts but having extensive white and no red in their tails.

whitestarts
plural of whitestart

willowfly
Any of a number of species of stoneflies in the Oemopteryx genus

wiretail
Any of various damselflies of the genus Rhadinosticta.

wiretails
plural of wiretail

witcheties
plural of witchety

witchetties
plural of witchetty

witchetty
Alternative spelling of witchety.

witchety
Any of certain Acacia species.
Ellipsis of witchety grub.

wollamide
Any of a group of antimycobacterial cyclic hexapeptides present in a soil microorganism in Wollogorang, Australia

wollamides
plural of wollamide

woodhaunter
Either of two species of birds in the genus Automolus (formerly believed to belong to their own genus, Hyloctistes), of southern Central America and northwestern South America.

woodhaunters
plural of woodhaunter

woodlizard
Any species in the genus Enyalioides, also sometimes called dwarf iguanas.

woodlizards
plural of woodlizard

woollyneck
Any of the genus Ciconia of storks.

woollynecks
plural of woollyneck

woolsedge
Any of several species of Scirpus related to Scirpus cyperinus with perianth bristles giving a wooly appearance.

wukipolyomavirus
Any poliomavirus of the genus Wukipolyomavirus

wukipolyomaviruses
plural of wukipolyomavirus

wuttagoonaspid
Any placoderm of the family Wuttagoonaspidae.

wuttagoonaspids
plural of wuttagoonaspid

xanthobacter
Any of the genus Xanthobacter of gram-negative bacteria.

xanthobacters
plural of xanthobacter

xanthomonad
Any of the genus Xanthomonas of proteobacteria.

xanthomonads
plural of xanthomonad

xanthophils
plural of xanthophil

xanthosome
Any arum of the genus Xanthosoma.

xanthosomes
plural of xanthosome

xanthoxylin
The active principle of the prickly ash (formerly in genus Xanthoxylum, now Zanthoxylum).

xanthoxyline
Alternative form of xanthoxylin.

xenoamicin
Any of a group of acylated depsipeptides present in the pathogen Xenorhabdus.

xenoamicins
plural of xenoamicin

xenoantigen
An antigen found in more than one species.

xenoantigens
plural of xenoantigen

xenobacteriology
The science of studying extraterrestrial bacteria.

xenobiont
Any organism found in surroundings, or in association with another organism, in which it is normally absent.

xenobionts
plural of xenobiont

xenocontamination
Contamination by a different species.

xenoengineering
Engineering of extraterrestrial species.

xenogenetics
A fictional science, concerned with the study of genetic makeup of extraterrestrial species.

xenohybrid
A hybrid with another species.

xenohybridization
Hybridization with another species.

xenohybrids
plural of xenohybrid.

xenoimmunization
Immunization via an antigen from a different species.

xenoimmunizations
plural of xenoimmunization

xenomedicine
The study and practice of medicine involving alien species.

xenomicrobiota
The microbiota from another individual or species.

xenomythology
The study of myths and legends of alien species.

xenoplasty
Transplantation between different species or genera.

xenosome
A endosymbiotic bacterium of some marine protozoans.
Particles of debris sometimes incorporated into the shells of some testate amoebae.

xenosomes
plural of xenosome

xenosurveillance
Examination of samples of one species in order to detect the activity of others (typically pathogens).

xenotetrapeptide
A tetrapeptide from a different species.

xenotetrapeptides
plural of xenotetrapeptide

xenotolerance
Tolerance to an antigen from another species.

xenotransplantation
The transplantation of biological or organic matter from a given species into a different one, especially when this matter has been altered (such as by genetic engineering)

xenotransplantations
plural of xenotransplantation

xenotrichulid
Any gastrotrich of the family Xenotrichulidae.

xenotrichulids
plural of xenotrichulid

xenoturbellan
Any bilaterian of the genus Xenoturbella.

xenoturbellans
plural of xenoturbellan

xenotype
Any of two or more variations of the same material from two or more different species.

xenotypes
plural of xenotype

xiphydriid
Any of the family Xiphydriidae of woodwasps.

xiphydriids
plural of xiphydriid

yaghourt
Archaic spelling of yogurt.

yaghurt
Archaic form of yogurt.

yaoort
Obsolete form of yaourt.

yaort
Obsolete form of yaourt.

yaourt
Obsolete form of yogurt.

yaourti
Obsolete form of yaourt.

yaourts
plural of yaourt

yellowleg
Either of two species of shorebirds, of the genus Tringa, that have yellow legs

yellowlegs
plural of yellowleg

yoghourt
Alternative spelling of yogurt.

yoghourts
plural of yoghourt

yoghurd
Alternative form of yogurt.

yoghurt
Alternative spelling of yogurt.

yoghurts
plural of yoghurt

yogurd
Alternative form of yogurt.

yogurt
A milk-based product stiffened by a bacterium-aided curdling process, and sometimes mixed with fruit or other flavoring.
Any similar product based on other substances (e.g. soy yogurt).

yogurts
plural of yogurt

yohourth
Alternative form of yogurt.

yokonolide
Any of a group of spiroketal macrolides present is some bacteria

yokonolides
plural of yokonolide

yooghort
Alternative form of yogurt.

yughard
Alternative form of yogurt.

yughurt
Alternative form of yogurt.

zaprorid
Any of the family Zaproridae of prowfish.

zaprorids
plural of zaprorid

zemmi
Alternative form of dhimmi.

zemmis
plural of zemmi

zetaproteobacteria
plural of zetaproteobacterium

zetaproteobacterium
Any protobacterium of the class Zetaproteobacteria of proteobacteria.

zeuglodont
Any of the family †Basilosauridae of extinct cetaceans, formerly under the taxonomically invalid name †Zeuglodontidae.

zeuglodonts
plural of zeuglodont

zoite
sporozoite

zoites
plural of zoite