/ Dictionary / Index C catalyze: Meaning and Definition of Find definitions for: cat•a•lyze Pronunciation: (kat'l-īz"), [key] — -lyzed, -lyz•ing. to act upon by catalysis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: catalyze (Thesaurus) catalytic cracking catamaran Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language