quintillion
quin
kwɪn
kvin
ti
ˈtɪ
ti
llion
liən
liēn
sextillioncastillianpostillionseptillion

Definition & Meaning of "quintillion"in English

quintillion
01

a numerical value represented as one followed by eighteen zeros 

Examples
Astronomers estimate there are over a quintillion stars in the observable universe. 
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