octillion Meaning, Definition & Usage

  1. noun the number that is represented as a one followed by 27 zeros

WordNet

Oc*til"lion noun
Etymology
L. octo eight + -illion, as in E. million: cf. F. octillion.
Definitions
  1. According to the French method of numeration (which method is followed also in the United States) the number expressed by a unit with twenty-seven ciphers annexed. According to the English method, the number expressed by a unit with forty-eight ciphers annexed. See Numeration.

Webster 1913