/ Dictionary / Index P postorbital: Meaning and Definition of Find definitions for: post•or•bit•al Pronunciation: (pōst-ôr'bi-tl), [key] — adj. Anat., Zool. located behind the orbit or socket of the eye. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. postoperative postpaid 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