watt

noun
\ ˈwät How to pronounce watt (audio) \

Definition of watt

: 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

Examples of watt in a Sentence

Recent Examples on the Web The company also foresees dramatic growth in capabilities going forward, with over 1000 TOPS per watt by the end of this decade within reach. Karl Freund, Forbes, 21 June 2022 The company says that RDNA3 GPUs will provide 50 percent more performance per watt than RDNA2, thanks to a combination of the new 5 nm manufacturing process and architectural improvements. Andrew Cunningham, Ars Technica, 10 June 2022 The Obama Portraits are a mega-watt attraction, a two-painting show generating blockbuster audiences from coast-to-coast. Chadd Scott, Forbes, 10 Dec. 2021 When reviewing proposals, pay attention to how much the system will cost per watt. New York Times, 24 May 2022 That’s the same maximum watt capability as the flagship Wahoo Kickr but a 5 percent steeper gradient. Joe Lindsey, Outside Online, 30 Apr. 2020 The average incandescent bulb produces 15 lumens per watt, reports Gizmodo’s Kevin Hurler. Margaret Osborne, Smithsonian Magazine, 28 Apr. 2022 Bulbs will now have to emit a minimum of 45 lumens —or brightness — per watt, reviving standards that had been set to go into effect in 2020, but which were blocked by the Trump administration. Kate Gibson, CBS News, 27 Apr. 2022 The price dropped to less than $4 a watt, from about $11.40 in 2000, not to less than 4 cents, from about 11.4 cents. New York Times, 15 Mar. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'watt.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of watt

1882, in the meaning defined above

History and Etymology for watt

James Watt †1819

Learn More About watt

Dictionary Entries Near watt

Watson-Watt

watt

Watt

See More Nearby Entries 

Statistics for watt

Last Updated

25 Jun 2022

Cite this Entry

“Watt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/watt. Accessed 29 Jun. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for watt

watt

noun
\ ˈwät How to pronounce watt (audio) \

Kids Definition of watt

: a unit for measuring electric power

watt

noun
\ ˈwät How to pronounce watt (audio) \

Medical Definition of watt

: the absolute mks 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 biographical name

\ ˈwät How to pronounce Watt (audio) \

Definition of Watt

James 1736–1819 Scottish inventor

More from Merriam-Webster on watt

Nglish: Translation of watt for Spanish Speakers

Britannica English: Translation of watt for Arabic Speakers

Britannica.com: Encyclopedia article about watt

WORD OF THE DAY

Test Your Vocabulary

Name That Food

  • a-light
  • Name these cookies!
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!