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Definition of "peristalsis" [per•i•stal•sis]

  • The wavelike muscular contractions of the alimentary canal or other tubular structures by which contents are forced onward toward the opening. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "peristalsis" in a sentence
  • "The oral administration of activated charcoal may effectively prevent systemic absorption of the combination for several hours after ingestion due to delayed gastric emptying and decreased peristalsis from the opiate and glutethimide combination."
  • "This increases the minute muscle contractions, also called peristalsis, necessary for good elimination."
  • "It is this rolling or pushing motion, called peristalsis, that facilitates elimination through the colon."