- a downward wave of contraction occurring in the intestine during digestionSee also peristalsis
C20: New Latin, from dia- + (peri) stalsis
- Peristalsis in which a region of inhibition precedes the wave of contraction, as in the intestinal tract.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.