/ Dictionary / Index K katalase: Meaning and Definition of Find definitions for: kat•a•lase Pronunciation: (kat'l-ās", -āz"), [key] — n. Biochem. catalase. peroxidase. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. katakana katalysis Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language