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peristalsis

[per-uh-stawl-sis, -stal-] /ˌpɛr əˈstɔl sɪs, -ˈstæl-/
noun, plural peristalses
[per-uh-stawl-seez, -stal-] /ˌpɛr əˈstɔl siz, -ˈstæl-/ (Show IPA).
Physiology
1.
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.
Origin
1855-1860
1855-60; < Neo-Latin < Greek peri- peri- + stálsis contraction, equivalent to stal- (variant stem of stéllein to set, bring together, compress) + -sis -sis
Related forms
hyperperistalsis, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for peristalsis

peristalsis

/ˌpɛrɪˈstælsɪs/
noun (pl) -ses (-siːz)
1.
(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
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
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for peristalsis
n.

1859, Modern Latin peristalsis; see peristaltic.

Online Etymology Dictionary, © 2010 Douglas Harper
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peristalsis in Medicine

peristalsis per·i·stal·sis (pěr'ĭ-stôl'sĭs, -stāl'-)
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. Also called vermicular movement.


per'i·stal'tic (-stôl'tĭk, -stāl'-) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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peristalsis in Science
peristalsis
  (pěr'ĭ-stôl'sĭs)   
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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peristalsis in Culture
peristalsis [(per-uh-stawl-sis, per-uh-stal-sis)]

The wavelike, involuntary muscular contractions that move food through the digestive system.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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