exa-(redirected from 1000000000000000000)
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word element used in naming units of measurement to designate a quantity 1018 (a quintillion, or million million million) times the unit to which it is joined. Symbol E.
Prefix used in the SI and metric system to signify a multiple of one quintillion (1018).
Prefix used in the SI and metric system to signify one quintillion (1018).