/ Dictionary / Index C cyclic GMP: Meaning and Definition of Find definitions for: cyclic GMP Pronunciation: [key] — Biochem. Biochem. a cyclic anhydride of guanosine monophosphate formed from guanosine triphosphate by the action of guanylate cyclase: in cellular metabolism, it acts as a second messenger associated with increased cell division and growth. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cyclic AMP cyclic shift Related Content Daily Word Quiz: foliage Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language