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operating room

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SEE MORE SYNONYMS FOR operating room ON THESAURUS.COM

noun

a specially equipped room, usually in a hospital, where surgical procedures are performed. Abbreviation: OR

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Origin of operating room

First recorded in 1885–90

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for operating room

The sterilizer in the operating-room was out of order—that meant a quarrel with the chief engineer.
K|Mary Roberts Rinehart
The nurse called the doctor and two orderlies, and they carried him into the operating-room.
Kindred of the Dust|Peter B. Kyne
For answer, O'Brine strode to the operating-room communicator.
Rip Foster in Ride the Gray Planet|Harold Leland Goodwin
The pit of the operating-room was in disorder—towels everywhere, tables of instruments, steaming sterilizers.
K|Mary Roberts Rinehart

The clothing should be loose, the operating-room should be well aired and cool, and iced water should always be at hand.
A System of Operative Surgery, Volume IV (of 4)|Various

Medicine definitions for operating room

operating room

n.

A room equipped for performing surgical operations.

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