bag of waters

American  

noun

1. a fluid-filled membranous sac in the pregnant uterus that encloses and cushions the fetus, normally breaking at or just before the time of birth; the amnion.

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Etymology

Origin of bag of waters

First recorded in 1880–85

Example Sentences

See Examples For:

bag of waters

The bag of waters in which the baby is enclosed throughout the pregnancy may have broken at the beginning of labor, before or during the first stage.

From Emergency Childbirth A Reference Guide for Students of the Medical Self-help Training Course, Lesson No. 11 by United States. Office of Civil Defense

That membrane forms a complete bag over the fetus; this bag becomes filled with liquid, so that the fetus floats freely in a bag of waters; this bag bursts only during childbirth.

From Woman Her Sex and Love Life by William J. Robinson

As noted above, the first subjective symptom may be the rupture of the bag of waters, and it is imperative to prepare at once for the labor.

From The Mother and Her Child by William S. Sadler

The bag of waters should rupture normally while it is being pushed through the external opening.

From Herself Talks with Women Concerning Themselves by Edith B. (Edith Belle) Lowry

The bag of waters helps dilate the parts much easier than the fœtus could do it alone.

From Herself Talks with Women Concerning Themselves by Edith B. (Edith Belle) Lowry