/ Dictionary / Index G googol: Meaning and Definition of Find definitions for: goo•gol Pronunciation: (g'gôl, -gol, -gul), [key] — n. a number that is equal to 1 followed by 100 zeros and expressed as 10. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: googol (Thesaurus) googly-eyed googolplex Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language