tylostrongyle
A strongyle having one end swollen.

tylostrongyles
plural of tylostrongyle

tymbal
One of a pair of specialised sound-producing structures located below each side of the anterior abdominal region of various species of cicada.

tymbales
plural of tymbal

tymbals
plural of tymbal

typothere
Synonym of typotherian.

typotheres
plural of typothere

typotherian
Any extinct mammal of the suborder †Typotheria

typotherians
plural of typotherian

tyrannulet
Any of about 50 bird species in the tyrant flycatcher family, distinguished by their small size.

tyrannulets
plural of tyrannulet

udonellid
Any flatworm of the family Udonellidae

ulicyclamide
A short, cytotoxic cyclopeptide present in a marine tunicate of the genus Lissoclinum.

uloborid
Any spider in the family Uloboridae.

uloborids
plural of uloborid

ulodid
Any beetle of the family Ulodidae.

ulodids
plural of ulodid

umbraculid
Any gastropod in the family Umbraculidae.

umbraculids
plural of umbraculid

ungaliophiine
Any booid snake of the subfamily Ungaliophiinae

ungaliophiines
plural of ungaliophiine

ungulinid
Any bivalve mollusk in the family Ungulinidae.

ungulinids
plural of ungulinid

upokororo
A New Zealand fish, Prototroctes oxyrhynchus in the family Haplochitonidae, rather like a trout.

uranoscopid
Any fish in the family Uranoscopidae.

uranoscopids
plural of uranoscopid

urflies
plural of urfly

urfly
Any of various species of dragonfly of the genus Archaeophya, endemic to Australia.

urocoptid
Any snail in the family Urocoptidae.

urocoptids
plural of urocoptid

urocyclid
Any slug or snail in the family Urocyclidae.

urocyclids
plural of urocyclid

urodid
Any moth in the family Urodidae.

urodids
plural of urodid

urolophid
Any fish in the family Urolophidae.

urolophids
plural of urolophid

uropodid
Any tortoise mite of the family Uropodidae

uropodids
plural of uropodid

uropodoid
uropodid

uropygid
Any arachnid of the order Thelyphonida; whip scorpion; vinegaroon.

urostylid
Any true bug of the family Urostylididae

urostylids
plural of urostylid

ursoid
Any mammal of the family Ursidae, the bears.

ursoids
plural of ursoid

urubu
A New World vulture (a vulture from South America).

urubus
plural of urubu

usdagalun
An isopod of the species Lirceus usdagalun (Lee County cave isopod).

valloniid
Any snail in the family Valloniidae.

valloniids
plural of valloniid

valvatid
Any gastropod in the family Valvatidae.

valvatids
plural of valvatid

vanessid
Any butterfly of the genus Vanessa.

vanessids
plural of vanessid

vangid
Any bird in the family Vangidae.

vangids
plural of vangid

vanikorid
Any sea snail in the family Vanikoridae.

vanikorids
plural of vanikorid

varanodontine
Any extinct lizard of the former family †Varanodontinae (now called Varanopidae)

varanodontines
plural of varanodontine

varroid
Any mite in the family Varroidae.

varroids
plural of varroid

varunid
Any crab in the family Varunidae.

varunids
plural of varunid

veigaiid
Any mite in the family Veigaiidae.

veigaiids
plural of veigaiid

veliferid
Any fish in the family Veliferidae of velifers or sailfin moonfishes.

veliferids
plural of veliferid

veneroid
Any bivalve mollusc of the order Venerida

veneroids
plural of veneroid

vergeress
A female verger.

vergeresses
plural of vergeress

vermetid
Any species of Vermetidae (worm snails).

vermetids
plural of vermetid

vermileonid
Any insect of the family Vermileonidae.

vermileonids
plural of vermileonid

vertiginid
Any snail in the family Vertiginidae.

vertiginids
plural of vertiginid

vestimeniferan
Misspelling of vestimentiferan.

vestimentiferan
Any benthic marine tube worm of the phylum Vestimentifera, now usually considered to be family Siboglinidae in phylum Annelida.

vestimentiferans
plural of vestimentiferan

vetulicolid
Any early Cambrian animal in the family Vetulicolidae.

vetulicolids
plural of vetulicolid

victoress
A female victor.

victoresses
plural of victoress

victoriapithecid
Any fossil primate of the family †Victoriapithecidae

victoriapithecids
plural of victoriapithecid

victress
Alternative form of victoress.

victresses
plural of victress

victrice
A female victor; a victress.

victrices
plural of victrice

viduid
Any bird in the family Viduidae.

viduids
plural of viduid

viperling
The young of a viper

viperlings
plural of viperling

vireonid
Any bird in the family Vireonidae.

vireonids
plural of vireonid

visitress
A female visitor.

visitresses
plural of visitress

visitrix
A female visitor.

volborthellid
Any extinct animal in the family Volborthellidae.

volborthellids
plural of volborthellid

volutid
Any gastropod in the family Volutidae, the volutes.

volutids
plural of volutid

volutomitrid
Any sea snail in the family Volutomitridae.

volutomitrids
plural of volutomitrid

volvatellid
Any sea snail in the family Volvatellidae.

volvatellids
plural of volvatellid

vombatomorph
Any extinct wombat or similar marsupial

vombatomorphs
plural of vombatomorph

wagel
Alternative form of waggel.

wagels
plural of wagel

waggel
The young of the great black-backed gull (Larus marinus), formerly considered a distinct species.

waggels
plural of waggel

waileress
A female professional mourner

waileresses
plural of waileress

wanderess
A female wanderer.

wanderesses
plural of wanderess

weanel
A weanling.

weanels
plural of weanel

weanling
Any young mammal that has been recently weaned.
Specifically, a human child that has been recently weaned.
Specifically, a young horse that has been weaned from its mother, but is less than one year old (usually 5-12 months old).

weanlings
plural of weanling

weaveress
A female weaver.

weaveresses
plural of weaveress

webstress
A female webster or weaver

webstresses
plural of webstress

webworm
Any of various caterpillars, of diverse moth families, that spin a web; the moth species of such a caterpillar.

webworms
plural of webworm

wedgetail
The eaglehawk.
A damselfly of the genus Acanthagrion.

wennel
Obsolete form of weanel.

wennels
plural of wennel

whaleling
A small or young whale.

whalelings
plural of whaleling

whaleman
A male whaler; (loosely) any whaler.

whalemen
plural of whaleman

wizardling
A young wizard.

wizardlings
plural of wizardling

wolfess
A female wolf, a she-wolf.
A predatory woman.

wolfesses
plural of wolfess

wolvess
Rare form of wolfess.

wolvesses
plural of wolvess

woyote
A coywolf.

woyotes
plural of woyote

wrenlet
A young wren

wrenlets
plural of wrenlet

wynyardiid
Any extinct marsupial in the family Wynyardiidae.

wynyardiids
plural of wynyardiid

xanthonychid
Any snail in the family Xanthonychidae.

xanthonychids
plural of xanthonychid

xarifiid
Any copepod of the family Xarifiidae.

xarifiids
plural of xarifiid

xenacanthid
Any prehistoric shark of the family Xenacanthidae.

xenacanthids
plural of xenacanthid

xenacanthimorph
Any extinct cartilaginous fish of the superorder Xenacanthimorpha

xenacanthimorphs
plural of xenacanthimorph

xenacoelomorph
A basal bilaterian animal of the phylum Xenacoelomorpha

xenacoelomorphs
plural of xenacoelomorph

xeniid
Any soft coral in the family Xeniidae.

xeniids
plural of xeniid

xenisthmid
Any fish in the family Xenisthmidae.

xenisthmids
plural of xenisthmid

xenopeltid
Any snake in the family Xenopeltidae.

xenopeltids
plural of xenopeltid

xenophorid
Any gastropod in the family Xenophoridae.

xenophorids
plural of xenophorid

xenopodine
Any frog of the subfamily Xenopodinae.

xenopodines
plural of xenopodine

xenorophid
Any extinct toothed whale of the family Xenorophidae

xenorophids
plural of xenorophid

xenoturbellid
any primitive bilaterian animal in the family Xenoturbellidae.

xenoturbellids
plural of xenoturbellid

xenotyphlopid
Any snake of the family Xenotyphlopidae

xenotyphlopids
plural of xenotyphlopid

xiphocentronid
Any caddis fly in the family Xiphocentronidae.

xiphocentronids
plural of xiphocentronid

xiphodontid
Any extinct mammal in the family Xiphodontidae.