the GNU version of the Collaborative International Dictionary of English
n. 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.
The Century Dictionary and Cyclopedia
n. The number produced by involving a million to the ninth power, denoted by unity with fifty-four ciphers annexed; or, according to the French and American system of numeration, the number denoted by unity with thirty ciphers annexed.
Word Usage
"The census estimated there were a mind-boggling "nonillion" -- or"