operating room

American  

noun

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

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Etymology

Origin of operating room

First recorded in 1885–90

Example Sentences

The most powerful treatment is not found in a prescription bottle or an operating room.

From Science Daily • Mar. 4, 2026

“We had a colloquial term in the operating room: December Deductible Derby,” said Dr. Parcells, noting that patients seeking insurance-covered surgeries like breast augmentations have deductibles in mind.

From The Wall Street Journal • Feb. 7, 2026

While a torn ACL typically sends athletes straight to the operating room, Vonn said surgery was not a discussion.

From Los Angeles Times • Feb. 3, 2026

"My love has just gone to the operating room," Bolsonaro's wife Michelle said in an Instagram post.

From Barron's • Dec. 25, 2025

At ten o’clock in the morning, I was taken to the operating room.

From "Night" by Elie Wiesel