kelvin temperature definition
Kelvin is a temperature scale designed so that zero degrees K is defined as absolute zero (at absolute zero, a hypothetical temperature, all molecular movement stops-all actual temperatures are above absolute zero) and the size of one unit is the same as the size of one degree Celsius.elvin is a temperature scale designed so that zero degrees K is defined as absolute zero (at absolute zero, a hypothetical temperature, all molecular movement stops-all actual temperatures are above absolute zero) and the size of one unit is the same as the size of one degree Celsius.