kelvin
noun(abbreviation K)
(plural kelvin or kelvins)
The plural kelvin is preferred in scientific language.a unit for measuring temperature. One kelvin is equal in size to one degree Celsius, but the Kelvin scale starts at absolute zero and water freezes at 273.15 kelvin. 开（开尔文温标的计量单位，1 开相当于 1 摄氏度，但以绝对零度为计算起点，水的冰点为 273.15 开） Word Originlate 19th cent.: named after Lord Kelvin (1824-1907), British physicist and natural philosopher.