# Kelvin

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## Kelvin

, First Baron Title of William Thomson. 1824-1907.
British physicist who developed the Kelvin scale of temperature (1848) and supervised the laying of a trans-Atlantic cable (1866).

## kel·vin

(kĕl′vĭn)
n. pl. kelvin Abbr. K
1. A unit of absolute temperature equal to 1/273.16 of the absolute temperature of the triple point of water. One kelvin degree is equal to one Celsius degree. See Table at measurement.
2. Kelvin A temperature scale in which zero occurs at absolute zero and each degree equals one kelvin. Water freezes at 273.15 K and boils at 373.15 K.

[After First Baron Kelvin.]

## Kelvin

(ˈkɛlvɪn)
n
(Biography) William Thomson, 1st Baron Kelvin. 1824–1907, British physicist, noted for his work in thermodynamics, inventing the Kelvin scale, and in electricity, pioneering undersea telegraphy

## kelvin

(ˈkɛlvɪn)
n
(Units) the basic SI unit of thermodynamic temperature; the fraction of the thermodynamic temperature of the triple point of water. Symbol: K
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

## Kel•vin

(ˈkɛl vɪn)

n.
1. William Thomson, 1st Baron, 1824–1907, English physicist and mathematician.
2. (l.c.) the base SI unit of temperature, defined to be 1/273.16 of the triple point of water. Symbol: K
3. of or pertaining to an absolute scale of temperature (Kel′vin scale`) based on the kelvin in which the degree intervals are equal to those of the Celsius scale.

## kel·vin

(kĕl′vĭn)
A unit of absolute temperature having the same value as one Celsius degree. It is used in the Kelvin scale. See more at Celsius. See Table at measurement.

## Kelvin

, First Baron. Title of William Thomson 1824-1907.
British mathematician and physicist known especially for his work on heat and electricity. In 1848 he proposed a scale of temperature independent of any physical substance, which became known as the Kelvin scale.