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operating room

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noun
  1. 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. 2018

Examples from the Web for operating room

Historical Examples

  • Carlotta Harrison pleaded a headache, and was excused from the operating-room and from prayers.

    K

    Mary Roberts Rinehart

  • He was in high spirits that first day of Sidney's operating-room experience.

    K

    Mary Roberts Rinehart

  • The operating-room was a hive of industry, and tongues kept pace with fingers.

    K

    Mary Roberts Rinehart

  • When are you going to put my protegee into the operating-room?

    K

    Mary Roberts Rinehart

  • She has been waiting for hours—ever since you went to the operating-room.

    K

    Mary Roberts Rinehart


operating room in Medicine

operating room

n.
  1. A room equipped for performing surgical operations.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.