HyperDic: vitelline_sac

English > 1 sense of the expression vitelline sac:
NOUNanimalvitelline sac, yolk sac, umbilical vesicle, vesicula umbilicusmembranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional
English > vitelline sac: 1 sense > noun 1, animal
Meaningmembranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional.
Synonymsyolk sac, umbilical vesicle, vesicula umbilicus
BroadersacA structure resembling a bag in an animal
Spanishsaco vitelino

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