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
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.
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.
Origin:
Origin: After First Baron Kelvin
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, 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).