[watt] n [James Watt d. 1819] (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
WATT
Meaning of WATT in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012