from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A unit of absolute temperature equal to 1/273.16 of the absolute temperature of the triple point of water. One kelvin degree is equal to one Celsius degree. See Table at measurement.
  • n. A temperature scale in which zero occurs at absolute zero and each degree equals one kelvin. Water freezes at 273.15 K and boils at 373.15 K.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. In the International System of Units, the base unit of thermodynamic temperature; 1/273.16 of the thermodynamic temperature of the triple point of water. Shown as "K".
  • n. A unit interval on the Kelvin scale.
  • n. A unit for a specific temperature on the Kelvin scale.

from the GNU version of the Collaborative International Dictionary of English

  • n. The SI unit of temperature, defined as being 1/273.16 of the triple point of water; abbreviated K. The melting point of water at 760 mm pressure is 273.15 Kelvins, and the boiling point 373.15 Kelvins. One degree Kelvin is equal to one degree Centigrade, and 9/5 degrees Fahrenheit.

from The Century Dictionary and Cyclopedia

  • n. A name proposed, in honor of Lord Kelvin, for the kilowatt-hour which is the British Board of Trade unit of work.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the basic unit of thermodynamic temperature adopted under the Systeme International d'Unites
  • n. British physicist who invented the Kelvin scale of temperature and pioneered undersea telegraphy (1824-1907)


After First Baron Kelvin.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Named after the Irish-born Scottish physicist William Thomson, Lord Kelvin. (Wiktionary)



Log in or sign up to get involved in the conversation. It's quick and easy.