noun, plural tracheostomies. Surgery.
the construction of an artificial opening through the neck into the trachea, usually for the relief of difficulty in breathing.
the opening so constructed.

1920–25; tracheo- + -stomy Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
tracheostomy (ˌtrækɪˈɒstəmɪ)
n , pl -mies
the surgical formation of a temporary or permanent opening into the trachea following tracheotomy

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

tracheostomy tra·che·os·to·my (trā'kē-ŏs'tə-mē)

  1. Surgical construction of a respiratory opening in the trachea.

  2. The opening so made.

  3. A tracheotomy performed in order to insert a catheter or tube into the trachea, especially to facilitate breathing.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
tracheostomy   (trā'kē-ŏs'tə-mē)  Pronunciation Key 
Surgical construction of an opening in the trachea, usually by making an incision in the front of the neck, for the insertion of a catheter or tube to facilitate breathing.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Tracheostomy used to be the only treatment for sleep apnea.
In some cases, intubation or tracheostomy may be needed.
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