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exa-
Pronunciation: /ˈɛksə/

Definition of exa- in English:

combiningForm

(Used in units of measurement) denoting a factor of 1018: exajoule

Origin

From (h)exa- (see hexa-), based on the supposed analogy of tera- and tetra-.

Definition of exa- in:

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Word of the day luxe
Pronunciation: lʌks
adjective
expensive and of high quality; luxurious