/ Dictionary / Index G geometric mean: Meaning and Definition of Find definitions for: ge'omet'ric mean' Pronunciation: [key] — Math. Math. the mean of n positive numbers obtained by taking the nth root of the product of the numbers: The geometric mean of 6 and 24 is 12. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. geometricize geometric progression Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language