Submitted by György Chityil ... on Fri, 01/19/2018 - 23:35 Hierarchy: NounDescription: {{context|surgery}} The surgical procedure to remove part or all of the mastoid process.Ngram: mastoidectomyNgram Text: mastoidectomySource: WiktionaryIssue: 0Wiktionary tag: surgeryNgram Count: 1