Definition of Joule

1. Noun. 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.

Exact synonyms: J, Watt Second
Generic synonyms: Energy Unit, Heat Unit, Work Unit
Terms within: Erg

2. Noun. English physicist who established the mechanical theory of heat and discovered the first law of thermodynamics (1818-1889).
Exact synonyms: James Prescott Joule
Generic synonyms: Physicist

Definition of Joule

1. n. A unit of work which is equal to 107 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.

Definition of Joule

1. Noun. In the International System of Units, the derived unit of energy, work and heat; the work required to exert a force of one newton for a distance of one metre. Also equal to the energy of one watt of power for a duration of one second. Symbol: J ¹

¹ Source:

Definition of Joule

1. a unit of energy [n -S]

Medical Definition of Joule

1. SI unit of energy. 1 Joule = 1E7 ergs = 1 Watt of power occurring for one second. 1 Joule is roughly 0.001 BTU and 1 calorie is roughly 4 joules. There are 3.6 million joules in a kilowatt hour. (14 Oct 1997)

Joule Pictures

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Lexicographical Neighbors of Joule

joule (current term)

Literary usage of Joule

Below you will find example usage of this term as found in modern and/or classical literature:

1. Dictionary of National Biography by LESLIE. STEPHEN (1892)
"As a boy joule was delicate, and in consequence received his early education ... But from this distinguished chemist joule received his first inducement to ..."

2. Encyclopaedia Britannica: A Standard Work of Reference in Art, Literature (1907)
"joule inferred from them that the mechanical equivalent of heat is probably ... During his experiments on the heat produced by electric currents, joule ..."

3. Proceedings of the Royal Society of London by Royal Society (Great Britain) (1896)
"Mr. joule very kindly placed the instruments at my disposal, ... All of these instruments were either made by joule himself or from his design and under his ..."

4. Laboratory Physics: A Students Manual for Colleges and Scientific Schools by Dayton Clarence Miller (1903)
"The joule is denned electrically as the quantity of work done in the ... The power to do this much work in one second — that is, to do a joule of work per ..."

5. The Encyclopaedia Britannica: A Dictionary of Arts, Sciences and General (1890)
"From these experiments joule -692 foot-pounds in the latitude of Manchester battery was less than when the wire was kept cold, proving that when light is ..."

6. The Mechanical Theory of Heat by Rudolf Clausius (1879)
"Applying equation (9a) to this quantity of heat, joule was able to use this ... The above-mentioned experiments of joule, in which air contained in a ..."

7. The Theory and Practice of Absolute Measurements in Electricity and Magnetism by Andrew Gray (1893)
"joule or Sir William Siemens also proposed to call the work Electrical done in one second, when the rate ot working is one Work, watt, one joule. ..."

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