Word Study
kelvin
CIDE DICTIONARY
kelvin, 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 point 373.15 Kelvins. One degree Kelvin is equal to one degree Centigrade, and PJC]
OXFORD DICTIONARY
kelvin, n. the SI unit of thermodynamic temperature, equal in magnitude to the degree celsius.
Idiom
Kelvin scale a scale of temperature with absolute zero as zero.
Usage
Abbr.: K.
Etymology
Lord Kelvin, Brit. physicist d. 1907
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