/ Dictionary / Index P pilon: Meaning and Definition of Find definitions for: pi•lon Pronunciation: (pē-lōn'), [key] — n. Southwestern U.S. (chiefly Texas) something extra; lagniappe. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pilocarpine pilonidal Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language