Octillion
Pronunciation : Oc*til"lion
Part of Speech : n.
Etymology : [L. octo eight + -illion, as in E. million: cf. F. octillion.]
Definition : Defn: 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.
Source : Webster's Unabridged Dictionary, 1913