nonillion
n
1 (in Britain, France, and Germany) the number represented as one followed by 54 zeros (1054)
2 (in the U.S. and Canada) the number represented as one followed by 30 zeros (1030), (Brit. word)
quintillion
(C17: from French, from Latin nonus ninth, on the model of million)
♦
nonillionth adj, n
Dictionnaire anglais Collins English definition-Thesaurus  

quintillion
n pl , -lions, -lion
1 (in Britain, France, and Germany) the number represented as one followed by 30 zeros (1030), (U.S. and Canadian word)
nonillion
2 (in the U.S. and Canada) the number represented as one followed by 18 zeros (1018),
(Brit. word)
trillion (C17: from Latin quintus fifth + -illion, as in million) ♦
quintillionth adj
nonillion
n
1 (in Britain, France, and Germany) the number represented as one followed by 54 zeros (1054)
2 (in the U.S. and Canada) the number represented as one followed by 30 zeros (1030), (Brit. word)
quintillion
(C17: from French, from Latin nonus ninth, on the model of million)
♦
nonillionth adj, n
Dictionnaire anglais Collins English definition-Thesaurus

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