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[os-tuh-mee] /ˈɒs tə mi/
noun, plural ostomies.
any of various surgical procedures, as a colostomy, in which an artificial opening is made so as to permit the drainage of waste products either into an appropriate organ or to the outside of the body.
Origin of ostomy
1955-60; generalized from words in which -ostomy is the final element; see -o-, -stomy Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Word Origin and History for ostomy

1957, abstracted from colostomy, etc.; ultimately from Modern Latin stoma "opening, orifice," from Greek stoma "mouth" (see stoma).

Online Etymology Dictionary, © 2010 Douglas Harper
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ostomy in Medicine

ostomy os·to·my (ŏs'tə-mē)
Surgical construction of an artificial excretory opening, such as a colostomy.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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