Nonillion

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Nonillion \No*nil"lion\, n. [L. nonus ninth + -illion, as in E.
     million.]
     According to the French and American notation, a thousand
     octillions, or a unit with thirty ciphers annexed; according
     to the English notation, a million octillions, or a unit with
     fifty-four ciphers annexed. See the Note under {Numeration}.


     [1913 Webster]