English edit

Etymology edit

Greek (h)epta- (seven), for the seventh order of 10−3. The final o conforms to the finals vowel of the SI series from micro- downwards; the letter z was added, as a start in a series of terms running backwards through the alphabet.

Prefix edit

SI prefix
z Previous: yocto-
Next: atto-

zepto-

  1. In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10−21 (short scale sextillionth or long scale trilliardth). Symbol: z

Antonyms edit

Derived terms edit

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Dutch edit

 
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Etymology edit

From Ancient Greek ἑπτά (heptá, seven), for the seventh order of 10−3. The final o conforms to the finals vowel of the SI series from micro- downwards; the letter z was added, as a start in a series of terms running backwards through the alphabet.

Pronunciation edit

  • (file)

Prefix edit

zepto-

  1. zepto-