unit of absolute temperature scale, 1911, in honor of British physicist Sir William Thompson, Lord Kelvin (1824-1907).
Kelvin scale n.
An absolute scale of temperature in which each degree equals one kelvin. Water freezes at 273.15 K and boils at 373.15 K. Also called absolute scale.
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 scale |
A scale of temperature beginning at absolute zero (-273.15°C or -459.67°F). Each degree, or kelvin, represents the same temperature increment as one degree on the Celsius scale. On the Kelvin scale water freezes at 273.15 K and boils at 373.15 K.
The standard temperature scale in scientific work, proposed by Lord Kelvin. A degree on the Kelvin scale is the same size as a degree on the Celsius scale, but the Kelvin scale starts at absolute zero instead of at the freezing point of water. Thus, on the Kelvin scale, absolute zero is zero degrees, ice melts at about 273 degrees, and water boils at about 373 degrees.