/ Dictionary / Index G geometric series: Meaning and Definition of Find definitions for: ge'omet'ric se'ries Pronunciation: [key] — Math. Math. an infinite series of the form, c + cx + cx + cx + …, where c and x are real numbers. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. geometrics geometrid 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