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Webster 1913 Edition
Octillion
Oc-til′lion
,Noun.
[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
.