Breadcrumb Home > Dictionary > Index O obstetrician: Meaning and Definition of Find definitions for: ob•ste•tri•cian Pronunciation: (ob"sti-trish'un), [key] — n. a physician who specializes in obstetrics. Abbr.: OB, ob Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: obstetrician (Thesaurus) obstetrical obstetrics ✖ Related Content Daily Word Quiz: taradiddle Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language