/ Dictionary / Index A adenosine deaminase: Meaning and Definition of Find definitions for: aden'osine deam'inase Pronunciation: [key] an enzyme that catalyzes the conversion of adenosine to inosine and ammonia. Abbr.: ADA Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. adenosine cyclic monophosphate adenosine deaminase deficiency Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language