/ Dictionary / Index G gnomonic: Meaning and Definition of Find definitions for: gno•mon•ic Pronunciation: (nō-mon'ik), [key] — adj. of or pertaining to a gnomon or to a sundial. of or pertaining to the measurement of time by a gnomon or a sundial. gnomic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gnomon -gnomy Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language