/ Dictionary / Index P Pyrrhonism: Meaning and Definition of Find definitions for: Pyr•rho•nism Pronunciation: (pir'u-niz"um), [key] — n. the Skeptic doctrines of Pyrrho and his followers. extreme or absolute skepticism. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Pyrrho pyrrhotite Related Content Daily Word Quiz: hale Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language