/ Dictionary / Index P postsynaptic: Meaning and Definition of Find definitions for: post•sy•nap•tic Pronunciation: (pōst"si-nap'tik), [key] — adj. Physiol. being or occurring on the receiving end of a discharge across the synapse. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. postscript post-synchronization Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language