/ Dictionary / Index P protopathic: Meaning and Definition of Find definitions for: pro•to•path•ic Pronunciation: (prō"tu-path'ik), [key] — adj. Physiol. noting or pertaining to a general, nondiscriminating responsiveness to pain or temperature stimuli (opposed to epicritic). primitive; primary. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. proton synchrotron protopectin Related Content Daily Word Quiz: wary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language