kelvin


kelvin
(K)
   the SI base unit of temperature, previously called the degree Kelvin (°K).
   One kelvin represents the same temperature difference as one degree Celsius. In 1967 the General Conference on Weights and Measures defined the temperature of the triple point of water (the temperature at which water exists simultaneously in the gaseous, liquid, and solid states) to be exactly 273.16 kelvins. Since this temperature is also equal to 0.01 °C, the temperature in kelvins is always equal to 273.15 plus the temperature in degrees Celsius. The kelvin equals exactly 1.8 degrees Fahrenheit. The unit is named for the British mathematician and physicist William Thomson (1824-1907), later known as Lord Kelvin after he was named Baron Kelvin of Largs. He is best remembered for his pioneering work on the physics of heat, but he was also a strong advocate of the metric system; his support helped establish the now-familiar electrical units such as the ohm, volt, and farad.

Dictionary of units of measurement. 2015.

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  • kelvin — [ kɛlvin ] n. m. • 1953; de lord Kelvin, physicien angl. ♦ Métrol. Unité de mesure thermodynamique de température (symb. K). Le kelvin est défini comme la fraction de 1/273,16 de la température du point triple de l eau. La température de zéro… …   Encyclopédie Universelle

  • kelvin — KÉLVIN s.m. (fiz.) Unitate fundamentală pentru măsurarea temperaturii în sistemul internaţional. [abr.: K] – Din engl., fr. kelvin. Trimis de catalin caba, 29.09.2006. Sursa: DEX 98  KÉLVIN s.m. Unitate de măsură a temperaturii, egală cu… …   Dicționar Român

  • Kelvin — Kel vin (k[e^]l v[i^]n), n. [from Lord Kelvin, English physicist.] The SI unit of temperature, defined as being 1/273.16 of the triple point of water; abbreviated K. The melting point of water at 760 mm pressure is 273.15 Kelvins, and the boiling …   The Collaborative International Dictionary of English

  • kelvin — kèlvīn m <G kelvína> DEFINICIJA fiz. SI jedinica termodinamičke temperature (simbol K), definirana kao 1/273.16 termodinamičke temperature trojne točke vode; jedan Kelvin jednak je jednom Celzijevom stupnju, ali za razliku od Celzijeve… …   Hrvatski jezični portal

  • kelvin — (Del primer barón de Kelvin, W. ☛ V. Thomson, 1824 1907, matemático y físico inglés). m. Fís. Unidad de temperatura del Sistema Internacional. Es igual al grado centígrado, pero en la escala de temperatura absoluta el 0 está fijado en 273,16°C.… …   Diccionario de la lengua española

  • Kelvin — m English: modern given name, first used in the 1920s. It is taken from a Scottish river which runs through Glasgow into the Clyde (cf. CLYDE (SEE Clyde)). Its choice as a given name may also have been influenced by the form of such names as… …   First names dictionary

  • kèlvīn — m 〈G kelvína〉 fiz. SI jedinica termodinamičke temperature (simbol K), definirana kao 1/273.16 termodinamičke temperature trojne točke vode; jedan Kelvin jednak je jednom Celzijevom stupnju, ali za razliku od Celzijeve skale Kelvinova skala… …   Veliki rječnik hrvatskoga jezika

  • Kelvin — unit of absolute temperature scale, 1911, in honor of British physicist Sir William Thompson, Lord Kelvin (1824 1907) …   Etymology dictionary

  • kelvin — sustantivo masculino 1. Área: física Unidad de temperatura en el Sistema Internacional. grado* Kelvin …   Diccionario Salamanca de la Lengua Española

  • kelvin — ► NOUN ▪ the SI base unit of thermodynamic temperature, equal in magnitude to the degree Celsius. ORIGIN named after the British physicist William T. Kelvin (1824 1907) …   English terms dictionary

  • Kelvin — Kelvin1 [kel′vin] adj. [after KELVIN2 1st Baron] designating or of a scale of thermodynamic temperature measured from absolute zero ( 273.16°C): the formula for converting Celsius to Kelvin is °K=°C + 273.16 n. [k ] a basic unit of temperature on …   English World dictionary


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