THESAURUS
Tadpole
amphibian, batrachian, birdling, bullfrog, calf, catling, chick, chickling, chicky, colt, croaker, cub, dogie, duckling, fawn, fledgling, foal, frog, fryer, gosling, hoppytoad, hoptoad, kid, kit, kitten, lamb, lambkin, litter, nest, nestling, newt, paddock, piglet, pigling, polliwog, pullet, pup, puppy, salamander, shoat, toad, tree frog, tree toad, weaner, whelp, yeanling
ROGET THESAURUS
Tadpole
Infant
N
infant, babe, baby, babe in arms, nurseling, suckling, yearling, weanling, papoose, bambino, kid, vagitus, child, bairn, little one, brat, chit, pickaninny, urchin, bantling, bratling, elf, youth, boy, lad, stripling, youngster, youngun, younker, callant, whipster, whippersnapper, whiffet, schoolboy, hobbledehoy, hopeful, cadet, minor, master, scion, sap, seedling, tendril, olive branch, nestling, chicken, larva, chrysalis, tadpole, whelp, cub, pullet, fry, callow, codlin, codling, foetus, calf, colt, pup, foal, kitten, lamb, lambkin, aurelia, caterpillar, cocoon, nymph, nympha, orphan, pupa, staddle, girl, lass, lassie, wench, miss, damsel, demoiselle, maid, maiden, virgin, hoyden, infantine, infantile, puerile, boyish, girlish, childish, babyish, kittenish, baby, newborn, unfledged, new-fledged, callow, in the cradle, in swaddling clothes, in long clothes, in arms, in leading strings, at the breast, in one's teens.