1.  demoiselle(n = noun.person) damoiselle, damosel, damozel, damsel - a young unmarried woman;
is a kind of maid, maiden

2.  demoiselle(n = noun.animal) damselfish - small brilliantly colored tropical marine fishes of coral reefs;
is a kind of percoid, percoid fish, percoidean
is a member of family pomacentridae, pomacentridae
has particulars: beaugregory, pomacentrus leucostictus, anemone fish, abudefduf saxatilis, sergeant major

demoiselle, n.
1 Zool. a small crane, Anthropoides virgo, native to Asia and N. Africa.
2 a a damselfly. b a damselfish.
3 archaic a young woman.

Etymology:
F, = DAMSEL

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.