/ Dictionary / Index A adenylic acid: Meaning and Definition of Find definitions for: ad'e•nyl'ic ac'id Pronunciation: (ad'n-il'ik, ad"-). [key] See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. adenylate cyclase Adeodatus I Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language