watt

views updated May 18 2018

watt / wät/ (abbr.: W) • n. the SI unit of power, equivalent to one joule per second, corresponding to the power in an electric circuit in which the potential difference is one volt and the current one ampere.

The Oxford Pocket Dictionary of Current English

watt

views updated May 14 2018

watt Unit of power in the SI system of units. A machine consuming one joule of energy per second has a power output of one watt. One horsepower corresponds to 746 watts. A watt is also a unit of electrical power, equal to the product of voltage and current. It is named after the Scottish engineer James Watt

World Encyclopedia

watt

views updated May 29 2018

watt (physics) unit of activity or power. XIX. f. name of James Watt (1736–1819), inventor of the modern steam engine and a pioneer in the science of energy.

The Concise Oxford Dictionary of English Etymology T. F. HOAD

watt

views updated Jun 08 2018

watt (wot) n. the SI unit of power, equal to 1 joule per second. Symbol: W.

A Dictionary of Nursing

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