/ Dictionary / Index G guanylic acid: Meaning and Definition of Find definitions for: gua•nyl'ic ac'id Pronunciation: (gwä-nil'ik). [key] See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Guanyin Guaporé Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language