/ Dictionary / Index P polysynaptic: Meaning and Definition of Find definitions for: pol•y•syn•ap•tic Pronunciation: (pol"ē-si-nap'tik), [key] — adj. Physiol. having or involving more than one synapse. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. polysyllogism polysyndeton Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language