OB-GYN
/əʊ.bi.dʒi.waɪˈɛn/noun
RareNot in standard dictionaries
1
Obstetrics and gynecology.
2
A physician in these specialties; an obstetrician-gynecologist.
3
(prefixed with the) A clinic or doctor's office with these specialties.
Thesaurus
#informal