- 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
First recorded in 1882; named after J. Watt
- James,1736–1819, Scottish engineer and inventor.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for watt
Watt never did anything to regain his position, although it bothered him for the rest of his life.In 2005, ‘Iowa Nice’ Ernst Helped to Oust Veterans From Local Board After They Opposed Her Candidacy
October 13, 2014
Blanche was a fragile white moth beating against the unbreakable sides of a 1000 watt bulb.Elia Kazan to Tennessee Williams: You Gotta Suffer to Sing the Blues
May 1, 2014
Watt was the first sitting member of Congress to be filibustered since before the Civil War.The GOP’s Nuclear Winter Strategy
December 2, 2013
But, like Watt, Millett is the Democratic nominee of a Democratic president.
Watt is the first sitting member of Congress to be blocked for an appointment since 1843.
His originality as an inventor has indeed been called in question, like that of Watt and Stephenson.Self-Help
Next morning Watt began to put his scheme to the test and found it practicable.
Those who worked without Watt's engine could hardly succeed.
The same is true of the "3-25 watt (lamps), in series" listed in the table.The Automobile Storage Battery
O. A. Witte
The lamp you use should be an ordinary 25, 40, or 60 watt vacuum lamp.Common Science
Carleton W. Washburne
- 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 horsepowerSymbol: W
C19: named after James Watt
- 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
Word Origin and History for watt
unit of electrical power, 1882, in honor of James Watt (1736-1819), Scottish engineer and inventor.
Online Etymology Dictionary, © 2010 Douglas Harper
- A unit of power in the International System of Units equal to one joule per second.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- 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).
- 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.
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.