| 1. | William Thomson, 1st Baron, 1824–1907, English physicist and mathematician. |
| 2. | (lowercase ) the base SI unit of temperature, defined to be 1/273.16 of the triple point of water. Abbreviation: K |
| 3. | 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). |
| 4. | Also, Kel⋅win [kel-win] . a male given name. |
kelvin kel·vin (kěl'vĭn)
n.
Abbr. K
A unit of temperature in the Kelvin scale equal to 1/273.16 of the absolute temperature of the triple point of pure water.
| 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. |