Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Hospitalob/gynob/gyn /ˌəʊbiː ˈɡaɪn $ ˌoʊ-/ noun especially American English informal 1 MHSSW[uncountable] the part of medical science that deals with obstetrics and gynaecology2 [countable] a doctor who works in this part of medical science ldoceonline.com
