From Longman Dictionary of Contemporary EnglishMDMD British English, M.D. American English /ˌem ˈdiː/ noun 1 [countable]MN (Doctor of Medicine) a university degree in medicine that you can get after your first degree2 [countable] British EnglishBB the abbreviation of managing director → CEO3 [uncountable] the abbreviation of muscular dystrophyFrom Longman Business DictionaryMDMD noun [countable] British English informalJOB the MANAGING DIRECTOR of a companyWe all laughed at the MD’s jokes, or got fired.
