watt

noun

ˈwät 

: 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

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

The middle option packs a decent 10,000-mAh capacity, is smaller than a deck of cards, and can deliver 20 watts to charge two devices at once via USB-C ports on either end. —Simon Hill, WIRED, 28 Sep. 2024

Word History

Etymology

James Watt †1819

First Known Use

1882, in the meaning defined above

Phrases Containing watt

• watt-hour

Kids Definition

watt

noun

ˈwät 

: 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

ˈwät 

: 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

Watt

biographical name

ˈwät 

James 1736–1819 Scottish inventor