%octillion%

n. [ L. octo eight + -illion, as in E. million: cf. F. octillion. ] 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. [ 1913 Webster ]