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YOLK SAC

Pronunciation (US):

• YOLK SAC (noun)
The noun YOLK SAC has 2 senses:

1. membranous structure that functions as the circulatory system in mammal embryos until the heart becomes functional
2. membranous structure enclosing the yolk of eggs in birds reptiles marsupials and some fishes; circulates nutrients to the developing embryo

Familiarity information: YOLK SAC used as a noun is rare.

• YOLK SAC (noun)

Sense 1

yolk sac ^{[BACK TO TOP]}

Meaning:

Membranous structure that functions as the circulatory system in mammal embryos until the heart becomes functional

Classified under:

Nouns denoting animals

Synonyms:

umbilical vesicle; vesicula umbilicus; vitelline sac; yolk sac

Hypernyms ("yolk sac" is a kind of...):

sac (a structure resembling a bag in an animal)

Sense 2

yolk sac ^{[BACK TO TOP]}

Meaning:

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

Classified under:

Nouns denoting animals

Hypernyms ("yolk sac" is a kind of...):

sac (a structure resembling a bag in an animal)

"Everything comes to him who waits."
(English proverb)
"The bird who has eaten cannot fly with the bird that is hungry."
(Native American proverb, Omaha)
"Only the tent pitched by your own hands will stand."
(Arabic proverb)
"May problems with neighbors last only as long as snow in March."
(Corsican proverb)

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