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English definition of “mastectomy”

mastectomy

noun [C]     /mæsˈtek.tə.mi/
a medical operation to remove a woman's breast : a partial mastectomy (= when part of the breast is removed ) a double mastectomy (= when both breasts are removed )Surgery
(Definition of mastectomy noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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