watt

[ wot ]
/ wɒt /

noun

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.

QUIZZES

DIVE INTO THIS BALMY SUMMERTIME SPELLING QUIZ

Do you often fall under the spell of the summer season? See if you can really spell your way through it with this quiz of popular summertime words.
Question 1 of 12
TAKE THE QUIZ TO FIND OUT

Origin of watt

First recorded in 1882; named after J. Watt

Words nearby watt

watson-crick rules, watson-watt, watson-wentworth, watsonia, watsonville, watt, watt, james, watt-hour, watt-second, wattage, watteau

Definition for watt (2 of 2)

Watt
[ wot ]
/ wɒt /

noun

James,1736–1819, Scottish engineer and inventor.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for watt

British Dictionary definitions for watt (1 of 2)

watt
/ (wɒt) /

noun

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

Word Origin for watt

C19: named after James Watt

British Dictionary definitions for watt (2 of 2)

Watt
/ (wɒt) /

noun

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

Medical definitions for watt

watt
[ wŏt ]

n.

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.

Scientific definitions for watt (1 of 2)

watt
[ wŏt ]

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
James 1736-1819

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.