/ Dictionary / Index A agatize: Meaning and Definition of Find definitions for: ag•at•ize Pronunciation: (ag'u-tīz"), [key] — -ized, -iz•ing. to change into or make like agate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Agathon à gauche* Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language