/ Dictionary / Index G googolplex: Meaning and Definition of Find definitions for: goo•gol•plex Pronunciation: (g'gôl-pleks", -gol-, -gul-), [key] — n. a number that is equal to 1 followed by a googol of zeros and expressed as 10&googolplex;. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: googolplex (Thesaurus) googol goo-goo eyes 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