foetus(n = noun.animal) fetus - an unborn or unhatched vertebrate in the later stages of development showing the main recognizable features of the mature animal;
is a kind of craniate, vertebrate
has parts: ductus arteriosus, umbilical, umbilical cord
has particulars: monster, teras, abortus, baby
Derived form adjective foetal1
Same as Fetus. [1913 Webster]
foetus, n. (US fetus) an unborn or unhatched offspring of a mammal esp. a human one more than eight weeks after conception.
Derivative:
foetal adj. foeticide n.
Etymology:
ME f. L fetus offspring
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.