/ Dictionary / Index B biocatalyst: Meaning and Definition of Find definitions for: bi•o•cat•a•lyst Pronunciation: (bī"ō-kat'l-ist), [key] — n. Biochem. enzyme. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: biocatalyst (Thesaurus) Bío-Bío biocellate Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language