/ Dictionary / Index G geometer: Meaning and Definition of Find definitions for: ge•om•e•ter Pronunciation: ( jē-om'i-tur), [key] — n. geometrician. a geometrid moth or larva. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: geometer (Thesaurus) geomedicine geometric Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language