Meaning Of The Word Yolk sac
What's the definition of Yolk sac? Find Yolk sac meanings, definitions and more at the Real Dictionary online.
Yolk sac Meaning
| Yolk sac Definition |
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What's The Definition Of Yolk sac?
yolk sac in British English
a saclike vascular membrane containing yolk, an outgrowth from the ventral surface of very yolky vertebrate embryos, as those of fishes, birds, or reptiles, that supplies nourishment to the embryo noun: an extraembryonic membrane that encloses the yolk of eggs in birds, reptiles, and marsupials and that circulates nourishment from the yolk to the developing embryo noun: the membranous sac that is attached to the ventral surface of the embryos of birds, reptiles, and some fishes and contains yolk |
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