Definitions for: Joule


[n] English physicist who established the mechanical theory of heat and discovered the first law of thermodynamics (1818-1889)
[n] a unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one second



Webster (1913) Definition: Joule (j[=oo]l), n. [From the distinguished English
physicist, James P. Joule.] (Physics.)
A unit of work which is equal to 10^7 units of work in the
C. G. S. system of units (ergs), and is practically
equivalent to the energy expended in one second by an
electric current of one ampere in a resistance of one ohm.
One joule is approximately equal to 0.738 foot pounds.

Joule's equivalent. See under Equivalent, n.

Synonyms: J, James Prescott Joule, watt second

See Also: energy unit, erg, heat unit, physicist, work unit

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