a temperature scale found in sciences like astronomy determine acutely cold temperatures. The Kelvin temperature scale is just like the Celsius scale except the freezing point of liquid, zero levels Celsius, is equal to 273 levels Kelvin. Absolute zero, the coldest known heat, is achieved at 0 degrees Kelvin or -273.16 levels Celsius. by DinahReport definition
Definition for "Kelvin"
A unit of absolute heat corresponding to 1/273.16…