watt

The SI unit of electrical power; the power available when the current is 1 ampere and the electromotive force is 1 volt; equal to 1 joule (107 ergs) per second or 1 voltampere. [James W., Scot. engineer, 1736–1819]

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watt 'wät n 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
Watt 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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n.
the SI units of power, equal to 1 joule per second. In electrical terms it is the energy expended per second when a current of 1 ampere flows between two points on a conductor between which there is a potential difference of 1 volt. 1 watt = 107 ergs per second. Symbol: W.

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(W) (waht) [James Watt, British engineer and inventor, 1736–1819] the SI unit of power, being the work done at the rate of 1 joule per second. In electric power, it is equivalent to a current of 1 ampere under a pressure of 1 volt.

Medical dictionary. 2011.

Look at other dictionaries:

  • watt — watt …   Dictionnaire des rimes

  • watt — [ wat ] n. m. • 1881; du nom de l ingénieur J. Watt ♦ Unité de mesure de puissance mécanique ou électrique, de flux thermique et de flux d énergie rayonnante (symb. W), équivalant à un transfert d énergie de 1 joule en 1 seconde. ⇒aussi kilowatt …   Encyclopédie Universelle

  • Watt — steht für: Watt (Einheit), eine physikalische Einheit, benannt nach James Watt Watt (Küste), den Bereich eines Wattenmeeres, der bei Niedrigwasser trockenliegt Watt (Bodentyp); den Bodentyp der Wattflächen in der Deutschen Bodensystematik Watt… …   Deutsch Wikipedia

  • Watt's — S.A. es una empresa de alimentos y lácteos de Chile. Muy famosa por sus conocidos néctar y mermelada. También posee las marcas lácteas Loncoleche y Calo,es muy reconocida por su calidad. Contenido 1 Cronología 2 Negocios 3 Empresas Relacionadas …   Wikipedia Español

  • WATT (J.) — WATT JAMES (1736 1819) Ingénieur et mécanicien écossais, né à Greenock et mort à Heathfield, près de Birmingham. Responsable, à l’université de Glasgow, de l’entretien des instruments de physique, Watt a l’occasion de réparer, en 1764, une pompe… …   Encyclopédie Universelle

  • watt — WATT, waţi, s.m. (fiz.) Unitate de măsură a puterii egală cu puterea care corespunde schimbului de energie sau lucrului mecanic de un joule într o secundă. – Din fr., engl. watt. Trimis de cata, 27.02.2002. Sursa: DEX 98  WATT s. (fiz.) (pop.)… …   Dicționar Român

  • watt — s.m.inv. TS fis., metrol. nel Sistema Internazionale, unità di misura della potenza elettrica, equivalente al lavoro di un joule al secondo (simb. W) {{line}} {{/line}} DATA: 1895. ETIMO: da Watt, nome dello scienziato e inventore scozzese James… …   Dizionario italiano

  • Watt — Watt, n. [From the distinguished mechanician and scientist, James Watt.] (Physics) A unit of power or activity equal to 10^{7} 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 …   The Collaborative International Dictionary of English

  • watt — [wɔt US wa:t] n written abbreviation W or w [Date: 1800 1900; Origin: James Watt] a unit for measuring electrical power ▪ a 100 watt bulb …   Dictionary of contemporary English

  • watt — {{hw}}{{watt}}{{/hw}}(fis.) Unità di misura della potenza equivalente al lavoro di 1 joule in 1 secondo; SIMB. W. ETIMOLOGIA: dal nome dell inventore, l ingegnere scozzese J. Watt (1736 1819) …   Enciclopedia di italiano

  • Watt — Watt, James (1736 1819) a British engineer who made important improvements to the steam engine. The measure of electrical power, the watt, is named after him …   Dictionary of contemporary English

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