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Webster 1913 Edition
Decillion
De-cil′lion
,Noun.
[L.
decem
ten + the ending of million
.] According to the English notation, a million involved to the tenth power, or a unit with sixty ciphers annexed; according to the French and American notation, a thousand involved to the eleventh power, or a unit with thirty-three ciphers annexed. [See the Note under
Numeration
.]