yolk sac - Similar and Opposite Words

What is another word for yolk sac ?

Here are the synonyms for yolk sac , a list of similar words for yolk sac from our thesaurus that you can use

Noun

membranous structure enclosing the yolk of eggs in birds, reptiles, marsupials, and some fishes; circulates nutrients to the developing embryo

Synonyms

• yolk sac

More generic

• sac

Noun

membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional

Synonyms

• umbilical vesicle
• vesicula umbilicus
• vitelline sac
• yolk sac

More generic

• sac

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