• synonyms


noun, plural co·los·to·mies. Surgery.
  1. the construction of an artificial opening from the colon through the abdominal wall, thus bypassing a diseased portion of the lower intestine and permitting the passage of intestinal contents.
  2. the opening so constructed.
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Origin of colostomy

First recorded in 1885–90; colo- + -stomy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for colostomy


noun plural -mies
  1. the surgical formation of an opening from the colon onto the surface of the body, which functions as an anus
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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

Word Origin and History for colostomy


1888, from colon (n.2) + Modern Latin -stoma "opening, orifice," from Greek stoma "opening, mouth" (see stoma).

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Online Etymology Dictionary, © 2010 Douglas Harper

colostomy in Medicine


  1. Surgical construction of an artificial excretory opening from the colon.
  2. The opening created by such a surgical procedure.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

colostomy in Science


  1. Surgical construction of an opening from the colon through the abdominal wall to the outside of the body for the purpose of excretion.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.