Main Entry:

watt

Pronunciation:

\ˈwät\

Function:

noun

Etymology:

James Watt †1819

Date:

1882

: the absolute meter-kilogram-second unit of power equal to the work done at the rate of one joule per second or to the power produced by a current of one ampere across a potential difference of one volt : ¹⁄₇₄₆ horsepower