/ Dictionary / Index P postnatal: Meaning and Definition of Find definitions for: post•na•tal Pronunciation: (pōst-nāt'l), [key] — adj. subsequent to childbirth: postnatal infection. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: postnatal (Thesaurus) postnasal drip postnuptial Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language