sextillion

  1. Cardinal number.  (''US; modern British & Australian, short scale'') A trillion billion: 1 followed by 21 zeros, 1021.
  2. Cardinal number.  (''dated British & Australian, long scale'') A million quintillion: 1 followed by 36 zeros, 1036.

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This entry was last updated on RefTopia from its source on 3/20/2012.