A rhythmic tightening in labor of the upper uterine musculature that contracts the size of the uterus and pushes the fetus toward the birth canal(noun)
WordNet. Princeton University. 2010.
Use "uterine contraction" in a sentence
"This frequent resort to fire seems to arise from an instinctive idea to protect the puerpera from cold, but it certainly is beneficial in so far as it allows her a certain period of rest, and may it not hasten uterine contraction and prevent hemorrhage?"