Boltzmann constant

noun, Physics.
1.
the ratio of the universal gas constant to Avogadro's number, equal to 1.3803 × 10 −16 erg per degree C. Symbol: k.
Also, Boltzmann's constant.
Origin
1905-10; after L. Boltzmann
British Dictionary definitions for Boltzmann constant

Boltzmann constant

noun
1.
(physics) the ratio of the gas constant to the Avogadro constant, equal to 1.380 650 × 10–23 joule per kelvin k