yolk sac 2
noundomain: animal
Princeton WordNet [ver.3.1]
Definition
membranous structure enclosing the yolk of eggs in birds, reptiles, marsupials, and some fishes; circulates nutrients to the developing embryo
membranous structure enclosing the yolk of eggs in birds, reptiles, marsupials, and some fishes; circulates nutrients to the developing embryo
Project co-funded by European funds
