yolk sac | Amarkosh

Meaning of word yolk sac from English dictionary with examples, synonyms and antonyms.

yolk sac noun

Meaning : Membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional.

Synonyms : umbilical vesicle, vesicula umbilicus, vitelline sac

Meaning : Membranous structure enclosing the yolk of eggs in birds, reptiles, marsupials, and some fishes. Circulates nutrients to the developing embryo.

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