kelvin kel·vin (kěl'vĭn)
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 (kěl'vĭn) Pronunciation Key
The SI unit used to measure temperature, the basic unit of the Kelvin scale. A difference of one degree Kelvin corresponds to the same temperature difference as a difference of one degree Celsius. See Table at measurement. See also absolute zero.