Definition of Joule, James Prescott in US English:

Joule, James Prescott

proper noun

  • (1818–89), British physicist. He established that all forms of energy were basically the same and interchangeable—the first law of thermodynamics. The Joule–Thomson effect, discovered with William Thomson (later Lord Kelvin) in 1852, led to the development of the refrigerator and to the science of cryogenics.


Joule, James Prescott