kelvin
  • (written as Kelvin)
    Scale of temperature using degrees of the same size as those in the Celsius scale – whereby each degree is a hundredth of the range between melting and boiling water at atmospheric pressure – but starting not at freezing point but at absolute zero, 273° below zero Celsius.
  • The fundamental SI unit of thermodynamic temperature. It is also the temperature interval used in the Kelvin temperature scale, so 0 K equals absolute zero. An increment of one kelvin equals an increment of one degree Celsius. Please note that the degree symbol is omitted when utilizing kelvins. Also note that the proper way to refer to this concept is kelvin, and not degree Kelvin, as the latter is its former name. Its symbol is K.

Not what you were looking for?