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Definition of open-heart surgery noun from the Oxford Advanced Learner's Dictionary

open-heart surgery

noun

/ˌəʊpən hɑːt ˈsɜːdʒəri/

/ˌəʊpən hɑːrt ˈsɜːrdʒəri/

[uncountable]

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a medical operation on the heart, during which the patient’s blood is kept flowing by a machineTopics Healthcarec2

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See open-heart surgery in the Oxford Advanced American Dictionary

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