[thawr-uh-kos-tuh-mee, thohr-]
noun, plural thoracostomies. Surgery.
the construction of an artificial opening through the chest wall, usually for the drainage of fluid or the release of an abnormal accumulation of air.
the opening so constructed.

thoraco- + -stomy Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Medical Dictionary

thoracostomy tho·ra·cos·to·my (thôr'ə-kŏs'tə-mē)
The surgical formation of an opening into the chest cavity.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Thoracostomy tubes are routinely used to drain the pleural space of fluid and gas to optimize pulmonary mechanics.
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