{i} Lord Kelvin, title of William Thompson (1824-1907), British physicist and mathematician who developed the Kelvin scale of temperature; unit of absolute temperature equal to 1/273.16 of the Kelvin scale temperature of the triple point of water
British physicist who developed the Kelvin scale of temperature (1848) and supervised the laying of a trans-Atlantic cable (1866). K a scale of temperature in which water freezes at 273.15 K and boils at 373.15 K (William Kelvin)