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googolplex

[goo-gawl-pleks, -gol-, -guh l-]
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noun
  1. a number that is equal to 1 followed by a googol of zeros and expressed as .
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Origin of googolplex

First recorded in 1935–40; googol + -plex
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for googolplex

googolplex

noun
  1. the number represented as one followed by a googol (10 100) of zeros
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Word Origin

C20: from googol + (du) plex
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
googolplex in Science

googolplex

[gōō′gôl-plĕks′]
  1. The number 10 raised to the power googol, written out as the numeral 1 followed by a googol (10100) of zeros.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.