Kelvin and Kelvin scale

Kelvin noun - The basic unit of thermodynamic temperature adopted under the Systeme International d'Unites.

Kelvin scale and kelvin are semantically related. In some cases you can use "Kelvin scale" instead a noun "Kelvin".

Kelvin scale noun - A temperature scale that defines absolute zero as 0 degrees; water freezes at 273.16 degrees and boils at 373.16 degrees.

Kelvin and Kelvin scale are semantically related. You can use "Kelvin" instead a noun phrase "Kelvin scale".