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bag of waters

noun phrase

Definition of bag of waters

: the double-walled fluid-filled sac that encloses and protects the fetus in the womb and that breaks releasing its fluid during the birth process

First Known Use of bag of waters

1765

in the meaning defined above

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Medical Dictionary

bag of waters

noun

medical Definition of bag of waters

: the double-walled fluid-filled sac that encloses and protects the fetus in the mother's womb and that breaks releasing its fluid during the birth process — see water bag

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