| 释义 |
exa-
exa-pref.1. One quintillion (1018): exahertz.2. 1,152,921,504,606,846,976 (260): exabyte.
[Alteration of hexa- (from its representing the sixth power of a thousand).]exa- prefix denoting 1018: exametres. Symbol: E exa- a combining form used in the names of units of measure equal to one quintillion of a given base unit: exabyte. [alter. of hexa-] exa-
exa-[′ek·sə] (science and technology) A prefix indicating 1018. Abbreviated E. Exa- a prefix used to form the names of units of measure equal to 1018 of the original unit. It was adopted in 1975 by the 15th General Conference on Weights and Measures. The symbol is E. exa-
exa- 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.exa- (E), (ek-za'), Prefix used in the SI and metric system to signify a multiple of one quintillion (1018).exa- Prefix used in the SI and metric system to signify one quintillion (1018). Exa-
| Acronym | Definition |
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| Exa-➣10^18 (one quintillion) |
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