peristalsis [ per- uh- stawl-sis, - stal- ] SHOW IPA / ˌpɛr əˈstɔl sɪs, -ˈstæl- / PHONETIC RESPELLING EXAMPLES | WORD ORIGIN noun, plural per·i·stal·ses . [per- uh- stawl-seez, - stal-] /ˌpɛr əˈstɔl siz, -ˈstæl-/ . Physiology the progressive wave of contraction and relaxation of a tubular muscular system, especially the alimentary canal, by which the contents are forced through the system. Nearby words perispomenon
peristyle Origin of peristalsis 1855–60;
Greek peri- peri-
contraction, equivalent to
(variant stem of
to set, bring together, compress) +
-sis -sis Related forms hy·per·per·i·stal·sis, noun
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for peristalsis
In its modern significance,
peristalsis, however, also includes the movements of longitudinal fibres.
It is on this roughage or waste material that intestinal movement or
For is it not indicative of
peristalsis that always when the upper parts of the gullet contract the lower parts dilate?
Various things may interfere with
peristalsis, and the disturbance of it will almost surely cause some sensation. British Dictionary definitions for peristalsis noun plural -ses ( -siːz) physiol the succession of waves of involuntary muscular contraction of various bodily tubes, esp of the alimentary tract, where it effects transport of food and waste products Derived Forms peristaltic, adjective peristaltically, adverb Word Origin for peristalsis
C19: from New Latin, from
peri- + Greek stalsis compression, from stellein to press together
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for peristalsis
Online Etymology Dictionary, © 2010 Douglas Harper
Medicine definitions for peristalsis peristalsis [ pĕr′ĭ-stôl ′sĭs, -stăl ′- ] n. pl. per•i•stal•ses ( -sēz) The wavelike muscular contractions of the intestine or other tubular structure that propel the contents onward by alternate contraction and relaxation. vermicular movement Related forms per′i•stal ( ′tic -stôl) ′tĭk, -stăl ′- adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for peristalsis The wavelike muscular contractions in tubular structures, especially organs of the digestive system such as the esophagus and the intestines. Peristalsis is characterized by alternate contraction and relaxation, which pushes ingested food through the digestive tract towards its release at the anus. Worms propel themselves through peristaltic movement.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Culture definitions for peristalsis peristalsis [ (per-uh- stawl-sis, per-uh- stal-sis) ]
The wavelike, involuntary muscular contractions that move food through the
The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.