watt

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noun \ˈwät\

Definition of watt

  1. :  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 :  1746 horsepower

Recent Examples of watt from the Web

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.

Origin and Etymology of watt

James Watt †1819


First Known Use: 1882


Watt

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biographical name \ˈwät\

Definition of Watt

  1. James 1736–1819 Scottish inventor


WATT Defined for English Language Learners

watt

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noun

Definition of watt for English Language Learners

  • : a unit for measuring electrical power


WATT Defined for Kids

watt

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noun \ˈwät\

Definition of watt for Students

  1. :  a unit for measuring electric power


Medical Dictionary

watt

play
noun \ˈwät\

Medical Definition of watt

  1. :  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 :  1746 horsepower

Biographical Note for watt

Watt

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James

(1736–1819), British engineer and inventor. Watt's steam engine played a major role in the coming of the Industrial Revolution and came to be used in paper mills, flour mills, cotton mills, iron mills, distilleries, canals, and waterworks. At the end of the 19th century the International Electrical Congress named the watt, the unit of electrical power, in his honor.



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