What is the Kelvin ?

Source: en.citizendium.org

" The kelvin (symbol: K) is the SI unit increment of temperature and is one of the seven SI base units. The kelvin is defined as 1/273.16 of the thermodynamic temperature of the triple point of water[1]. Zero kelvin (0 K) is the thermodynamic absolute zero. In some disciplines, the term absolute temperature indicates the use of an absolute scale, such as Kelvin.
The kelvin is named after the Irish-born physicist and engineer William Thomson, 1st Baron Kelvin (1824 – 1907), who wrote of the need for an absolute thermometric scale. "