nonillion Meaning, Definition & Usage

No*nil"lion noun
Etymology
L. nonus ninth + -illion, as in E. million.
Definitions
  1. 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.

Webster 1913