ob-gyn
noun [ C ] US informal (also OB/GYN, ob/gyn) uk/ˈəʊ.bi.dʒi.waɪˌen/ us/ˈoʊ.bi.dʒi.waɪˌen/
妇产科医生（obstetrician-gynecologist 的缩写）
abbreviation for obstetrician-gynecologist: a doctor who specializes in pregnancy, birth, and diseases affecting women's reproductive organs