William Thomson, 1st Baron, 1824?1907, English physicist and mathematician.

( lowercase ) the base SI unit of temperature, defined to be 1 / 273.16 of the triple point of water. Abbreviation

K

Thermodynamics . noting or pertaining to an absolute scale of temperature (Kelvin scale) in which the degree intervals are equal to those of the Celsius scale and in which the triple point of water has the value 273.16 Kelvin. Compare absolute temperature scale , Celsius ( def. 2 ) .

Also, Kelwin

the basic unit of thermodynamic temperature adopted under the Systeme International d'Unites

British physicist who invented the Kelvin scale of temperature and pioneered undersea telegraphy (1824-1907)