yocto-

1. a combining form used in the names of units of measure equal to one septillionth (10-24 ) of a given base unit.

Word History and Origins

Origin of yocto-¹

First recorded in 1990–95; alteration of octo-

Example Sentences

But other than this, there has not been much need for the yocto prefix.

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Like yocto, its etymological roots lie in the Greek octa—yotta signifies one thousand raised to the 8th power, and yocto signifies one thousandth raised to the 8th power.

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