surgical repair of the heart during which the blood circulation is often maintained mechanically
WordReference Random House Learner's Dictionary of American English © 2025
ˈo•pen-ˈheart ˌsur•ger•y, n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2025- Surgeryan operation performed on the exposed heart with the aid of a special machine to keep the blood circulating.
o′pen-heart′ sur′gery
(ō′pən härt′),USA pronunciation
- Surgerysurgery performed on the exposed heart while a heart-lung machine pumps and oxygenates the blood and diverts it from the heart.
- 1975–80
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