watt

[ wot ]

noun
  1. the standard unit of power in the International System of Units (SI), equivalent to one joule per second and equal to the power in a circuit in which a current of one ampere flows across a potential difference of one volt. Abbreviation: W, w.

Origin of watt

1
First recorded in 1882; named after J. Watt

Words Nearby watt

Other definitions for Watt (2 of 2)

Watt
[ wot ]

noun
  1. James, 1736–1819, Scottish engineer and inventor.

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How to use watt in a sentence

British Dictionary definitions for watt (1 of 2)

watt

/ (wɒt) /


noun
  1. the derived SI unit of power, equal to 1 joule per second; the power dissipated by a current of 1 ampere flowing across a potential difference of 1 volt. 1 watt is equivalent to 1.341 × 10 –3 horsepower: Symbol: W

Origin of watt

1
C19: named after James Watt

British Dictionary definitions for Watt (2 of 2)

Watt

/ (wɒt) /


noun
  1. James. 1736–1819, Scottish engineer and inventor. His fundamental improvements to the steam engine led to the widespread use of steam power in industry

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for watt (1 of 2)

watt

[ wŏt ]


  1. The SI derived unit used to measure power, equal to one joule per second. In electricity, a watt is equal to current (in amperes) multiplied by voltage (in volts).

Scientific definitions for Watt (2 of 2)

Watt

  1. British engineer and inventor who patented a much improved version of the steam engine (1769) and devised the unit of horsepower. The watt unit of power is named for him.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for watt

watt

The basic unit of power, named after the eighteenth-century Scottish inventor James Watt.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.