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1. (n.) watt
the SI unit of power, equivalent to one joule per second and equal to the power in a circuit in which a current of one ampere flows across a potential difference of one volt.
2. (n.) Watt
James, 1736–1819, Scottish engineer and inventor.
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| Definition of 'watt' |
Princeton's WordNet |
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1. (noun) watt, W
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. (noun) Watt, James Watt
Scottish engineer and inventor whose improvements in the steam engine led to its wide use in industry (1736-1819)
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1. (noun) watt
a unit for measuring electricity
a 100 watt light bulb
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| Definition of 'watt' |
Webster Dictionary |
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1. (noun) watt
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
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| Definition of 'watt' |
The Standard Electrical Dictionary |
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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.]
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Sense: (abbreviated toWwhen written) a unit of power, especially of heat or light.
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 Afrikaans: watt |
 Arabic: واط: وَحْدَة القُدْرَه ال |
 Bulgarian: ват |
 Brazilian: watt |
 Czech: watt |
 German: das Watt |
 Danish: watt |
 Greek: βατ |
 Spanish: vatio |
 Estonian: vatt |
 Farsi: وات |
 Finnish: watti |
 French: watt |
 Hebrew: וַוט |
 Hindi: ताप या प्रकाश की एक इकाई |
 Croatian: vat |
 Hungarian: watt |
 Indonesian: watt |
 Icelandic: vatt |
 Italian: watt |
 Japanese: ワット |
 Korean: 와트 |
 Lithuanian: vatas |
 Latvian: vats |
 Malay: watt |
 Dutch: watt |
 Norwegian: watt |
 Polish: wat |
 Persian: وات |
 Pashto: واټ (دبريښنا دميچ كولو يو |
 Portuguese: watt |
 Romanian: watt |
 Russian: ватт |
 Slovak: watt |
 Slovenian: vat |
 Serbian: vat |
 Swedish: watt |
 Thai: หน่วยวัดกำลังไฟฟ้า |
 Turkish: vat |
 Taiwanese: (光或熱計量單位)瓦特 |
 Ukrainian: ват |
 Urdu: بجلی کا یونٹ |
 Vietnamese: oát, đơn vị điện năng |
 Chinese: （电的计量单位）瓦特 |
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