/ Dictionary / Index P polyneuritis: Meaning and Definition of Find definitions for: pol•y•neu•ri•tis Pronunciation: (pol"ē-noo-rī'tis, -nyoo-), [key] — n. Pathol. inflammation of several nerves at the same time; multiple neuritis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: polyneuritis (Thesaurus) Polynesian Polynices Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language