What does WATT mean?

Definitions for WATTwɒt

Here are all the possible meanings and translations of the word WATT.

Princeton's WordNet

  1. watt, W(noun)

    a unit of power equal to 1 joule per second; the power dissipated by a current of 1 ampere flowing across a resistance of 1 ohm

  2. Watt, James Watt(noun)

    Scottish engineer and inventor whose improvements in the steam engine led to its wide use in industry (1736-1819)


  1. watt(Noun)

    In the International System of Units, the derived unit of power; the power of a system in which one joule of energy is transferred per second. Symbol: W

  2. Watt(ProperNoun)

    An English and Scottish surname derived from the given name Wat.

  3. Origin: Named after the Scottish engineer James Watt.

Webster Dictionary

  1. Watt(noun)

    a unit of power or activity equal to 107 C.G.S. units of power, or to work done at the rate of one joule a second. An English horse power is approximately equal to 746 watts

  2. Origin: [From the distinguished mechanician and scientist, James Watt.]


  1. Watt

    The watt is a derived unit of power in the International System of Units, named after the Scottish engineer James Watt. The unit, defined as one joule per second, measures the rate of energy conversion or transfer.

Chambers 20th Century Dictionary

  1. Watt

    wot, n. the practical unit of electrical activity or power—from James Watt (1736-1819).

The Standard Electrical Dictionary

  1. Watt

    (a) The practical unit of electric activity, rate of work, or rate of energy. It is the rate of energy or of work represented by a current of one ampere urged by one volt electro-motive force; the volt-ampere. It is the analogue in electricity of the horse power in mechanics; approximately, 746 watts represent one electric horse power. Ohm's law, taken as C = E, gives as values for current, C and E, and for electro- motive force C R. In these formulas, C represents current strength, R represents resistance and E represents electro-motive force. Then a watt being the product of electro-motive force by current strength, we get the following values for rate of electric energy, of which the watt is the practical unit: (1) E2 -- (2) C*E -- (3) C2 * R. The equivalents of the watt vary a little according to different authorities. Ayrton gives the following equivalents: 44.25 foot pounds per minute--.7375 foot pounds per second--1/746 horse power. These values are practically accurate. Hospitalier gives .7377 foot pounds per second. Hering gives .737324 foot pounds per second, and 1000/745941 horse power. It is equal to 1E7 ergs per second. Synonym--Volt-ampere. (c) It has been proposed to use the term as the unit of energy, instead of activity or rate of energy (Sir C. W. Siemens, British Association, 1882); this use has not been adopted and may be regarded as abandoned. [Transcriber's note; Watt is a unit of POWER--energy per unit of time.]

Suggested Resources

  1. WATT

    What does WATT stand for? -- Explore the various meanings for the WATT acronym on the Abbreviations.com website.


  1. Chaldean Numerology

    The numerical value of WATT in Chaldean Numerology is: 6

  2. Pythagorean Numerology

    The numerical value of WATT in Pythagorean Numerology is: 1

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