noun. the process of wavelike muscle contractions of the alimentary tract that moves food along.
- bodily process
- bodily function
Example sentences of the word peristalsis
1. Noun, singular or mass
Muscles in the stomach help squeeze digested food into the small intestine a little at a time through a process called peristalsis.
2. Verb, non-3rd person singular present
The active ingredient in cassia tea, referred to as senna glycosides or sennosides, promotes peristalsis in the colon to increase stool elimination.