/ Dictionary / Index P postop: Meaning and Definition of Find definitions for: post•op Pronunciation: (pōst'op"), [key] — Informal. Informal. —adj. postoperative. —adv. postoperatively: We'll have to see how he does postop. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Post Office Department postoperative Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language