WordReference Random House Unabridged Dictionary of American English © 2026
bag′ of wa′ters,
- Anatomy, Medicinea 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.
- 1880–85
'bag of waters' also found in these entries (note: many are not synonyms or translations):