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

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

"There's a lot of interesting emotional circuits that are deep in the brain, but until now you couldn't manipulate them outside of the operating room."

From Science Daily • Feb. 4, 2026

Mills would wake up in an operating room, where a Russian surgeon stood over him.

From The Wall Street Journal • Jan. 2, 2026

He carried it to the clinic only to see Nurse Cha take Mija’s mother to the operating room.

From "Finding Junie Kim" by Ellen Oh