slender threadlike roundworms living in the blood and tissues of vertebrates
filaria
Noun
European weed naturalized in southwestern United States and Mexico having reddish decumbent stems with small fernlike leaves and small deep reddish-lavender flowers followed by slender fruits that stick straight up
fishworm
Noun
terrestrial worm that burrows into and helps aerate soil
fishing worm
Noun
terrestrial worm that burrows into and helps aerate soil
freshwater limpet
Noun
minute conical gastropod superficially resembling a limpet but living and feeding on freshwater plants
fiddler crab
Noun
burrowing crab of American coastal regions having one claw much enlarged in the male
freshwater mussel
Noun
bivalve mollusk abundant in rivers of central United States
freshwater clam
Noun
bivalve mollusk abundant in rivers of central United States
fairy shrimp
Noun
small freshwater branchiopod having a transparent body with many appendages
flinthead
Noun
an American stork that resembles the true ibises in having a downward-curved bill
fish louse
Noun
a kind of copepod
flamingo
Noun
large pink to scarlet web-footed wading bird with down-bent bill
finback
Noun
large flat-headed whalebone whale having deep furrows along the throat
finback whale
Noun
large flat-headed whalebone whale having deep furrows along the throat
fin whale
Noun
large flat-headed whalebone whale having deep furrows along the throat
frigate bird
Noun
long-billed warm-water seabird with wide wingspan and forked tail
fulmar
Noun
heavy short-tailed oceanic bird of polar regions
fulmar petrel
Noun
heavy short-tailed oceanic bird of polar regions
feist
Noun
a nervous belligerent little mongrel dog
fice
Noun
a nervous belligerent little mongrel dog
fox terrier
Noun
small lively black-and-white terriers formerly used to dig out foxes
fissiped mammal
Noun
terrestrial carnivores
foxhound
Noun
medium-sized glossy-coated hounds developed for hunting foxes
fissiped
Noun
terrestrial carnivores
flat-coated retriever
Noun
an English breed having a shiny black or liver-colored coat
fur seal
Noun
eared seal of the southern hemisphere
fur seal
Noun
an eared seal of the northern Pacific
fox
Noun
alert carnivorous mammal with pointed muzzle and ears and a bushy tail
fox
Noun
a shifty deceptive person
fox
Noun
the grey or reddish-brown fur of a fox
fox
Verb
become discolored with, or as if with, mildew spots
fox
Verb
be confusing or perplexing to
fox
Verb
deceive somebody
felid
Noun
any of various lithe-bodied roundheaded fissiped mammals, many with retractile claws
field spaniel
Noun
large usually black hunting and retrieving spaniel with a dense flat or slightly wavy coat
fanaloka
Noun
civet of Madagascar
false vampire
Noun
any New or Old World carnivorous bat erroneously thought to suck blood but in fact feeding on insects
false vampire bat
Noun
any New or Old World carnivorous bat erroneously thought to suck blood but in fact feeding on insects
false saber-toothed tiger
Noun
North American cat of the Miocene and Pliocene
forewing
Noun
either of the anterior pair of wings on an insect that has four wings
fore-wing
Noun
either of the anterior pair of wings on an insect that has four wings
fore wing
Noun
either of the anterior pair of wings on an insect that has four wings
frosted bat
Noun
common Eurasian bat with white-tipped hairs in its coat
fossorial foot
Noun
foot adapted for digging as in moles
fossorial mammal
Noun
a burrowing mammal having limbs adapted for digging
fruit bat
Noun
large Old World bat of warm and tropical regions that feeds on fruit