English
Detailed Synonyms for yolk sac in English
yolk sac:
yolk sac [the ~] noun
-
the yolk sac
– membranous structure enclosing the yolk of eggs in birds, reptiles, marsupials, and some fishes; circulates nutrients to the developing embryo 1 -
the yolk sac
– membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional 1the vitelline sac; the umbilical vesicle; the yolk sac; the vesicula umbilicus– membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional 1