operating theatre

noun
🔊/ˈɒpəreɪtɪŋ θɪətə(r)/
🔊/ˈɑːpəreɪtɪŋ θiːətər/
(also theatre)
(both British English)
(North American English operating room)
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  1. a room in a hospital used for medical operations手术室Topics Medicineb2