'Decillion' definitions:

Definition of 'Decillion'

From: GCIDE
  • Decillion \De*cil"lion\, n. [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.] [1913 Webster]