Nonillion
Pronunciation : No*nil"lion
Part of Speech : n.
Etymology : [L. nonus ninth + -illion, as in E. million.]
Definition : Defn: 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.
Source : Webster's Unabridged Dictionary, 1913