noun plural -ses (-siːz) physiol
a downward wave of contraction occurring in the intestine during digestionSee also peristalsis
Word Origin for diastalsis
C20: New Latin, from dia- + (peri) stalsis
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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.