单词	mastoidectomy
释义	mastoidectomy noun mas·​toid·​ec·​to·​my ˌma-ˌstȯi-ˈdek-tə-mē  plural mastoidectomies : surgical removal of part of the mastoid process of the temporal bone Example Sentences Recent Examples on the Web According to the Independent, the placement of the cuts suggests the patient had a mastoidectomy—surgery undertaken to treat an infection of the mastoid bones, which are located just behind each ear. Jane Recker, Smithsonian Magazine, 24 Feb. 2022 In a radical mastoidectomy, the surgeon will first make a cut behind the ear and then use a bone drill to open access to the middle ear cavity. Jennifer Ouellette, Ars Technica, 24 Feb. 2022 Word History Etymology mastoid entry 2 + -ectomy First Known Use 1898, in the meaning defined above Medical Definition mastoidectomy noun mas·​toid·​ec·​to·​my ˌmas-ˌtȯid-ˈek-tə-mē  plural mastoidectomies : surgical removal of the mastoid cells or of the mastoid process of the temporal bone
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