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-stomy

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  1. a combining form used in the names of surgical operations that involve the establishment of an artificial opening into or between the part or parts specified by the initial element: gastrostomy.
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Origin of -stomy

< Greek -stomia, derivative of stóma mouth. See -stome, -y3
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for -stomy

-stomy

n combining form
  1. indicating a surgical operation performed to make an artificial opening into or for a specified partcytostomy
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Word Origin

from Greek -stomia, from stoma mouth
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

-stomy in Medicine

-stomy

suff.
  1. A surgical operation in which an artificial opening is made into an organ or part:colostomy.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.