octillion
- Cardinal number. (''US; modern British & Australian, short scale'') A thousand trillion trillion, a billion billion billion: 1 followed by 27 zeros, 1027.
- Cardinal number. (''dated British & Australian, long scale'') A quadrillion quintillion: 1 followed by 48 zeros, 1048.
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This entry was last updated on RefTopia from its source on 3/20/2012.