animal, animate being, beast, creature, fauna, brute - a living organism characterized by voluntary movement

ascidian tadpole - free-swimming larva of ascidians; they have a tail like a tadpole that contains the notochord

bladder worm - encysted saclike larva of the tapeworm

cercaria - tadpole-shaped parasitic larva of a trematode worm; tail disappears in adult stage

wireworm - wormlike larva of various elaterid beetles; feeds on roots of many crop plants

mealworm - the larva of beetles of the family Tenebrionidae

wiggler, wriggler - larva of a mosquito

jointworm, strawworm - larva of chalcid flies injurious to the straw of wheat and other grains

ant lion, antlion, doodlebug - the larva of an ant lion or of any of several other insects

aphid lion, aphis lion - carnivorous larva of lacewing flies

dobson, hellgrammiate - large brown aquatic larva of the dobsonfly; used as fishing bait

caseworm - insect larva that constructs a protective case around its body

caterpillar - a wormlike and often brightly colored and hairy or spiny larva of a butterfly or moth

nymph - a larva of an insect with incomplete metamorphosis (as the dragonfly or mayfly)

leptocephalus - slender transparent larva of eels and certain fishes

bot - botfly larva; typically develops inside the body of a horse or sheep or human

grub - a soft thick wormlike larva of certain beetles and other insects

polliwog, pollywog, tadpole - a larval frog or toad