: 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
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During a run, the Watch 2R tracks several advanced metrics including average power (in watts), ground contact time, stride length, and vertical amplitude along with your average and max heart rate, cadence, calories, distance, duration, maximal oxygen consumption (VO2 Max), pace, and steps.
—PCMAG, 12 Oct. 2024
Both your backseat and the bed both have AC outlets capable of delivering up to 2,400 watts.
—Josh Max, Forbes, 18 Oct. 2024
One of the oxygenation units uses 1,100 watts from a typical 110-volt outlet to provide enough oxygen for a typical bedroom.
—Frederick Dreier, Outside Online, 16 Oct. 2024
These recommendations have 1,000 watts in mind, which is generally standard for microwaves.
—Audrey Bruno, SELF, 14 Oct. 2024
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Word History
Etymology
James Watt †1819
First Known Use
1882, in the meaning defined above
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Cite this Entry
“Watt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/watt. Accessed 15 Nov. 2024.
Kids Definition
watt
noun
: a unit of power equal to the work done at the rate of one joule per second
Etymology
named for James Watt 1736–1819 Scottish engineer
Medical Definition
watt
noun
: 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
Biographical Definition
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
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