operating room

American  

noun

• operating rooms
  plural

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

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Other Word Forms

Noun Inflected Forms

• operating rooms
  plural

Etymology

Origin of operating room

First recorded in 1885–90

Example Sentences

See Examples For:

operating room

"There wouldn't have been any operations without them," she told AFP outside the operating room in the cardiology department.

From Barron's ● Sep. 9, 2026

Ruteng Regional General Hospital's operating room, delivery room, pharmacy, and laboratory were all rendered defunct after the building's roof collapsed.

From BBC ● Aug. 17, 2026

The team was about to take her to the operating room when he was finally able to detach it.

From Salon ● May 27, 2026

Yet because of their uncommon family structure, it wasn’t until just minutes before the obstetrician cut into her belly that the father of her child got permission to go with her into the operating room.

From Los Angeles Times ● Apr. 25, 2026

Although I was still groggy when I came out of the operating room, I had managed to squeeze Mom’s finger to tell her I was okay.

From "Ugly" by Robert Hoge