Etymology

joule

J8O1U1L1E1

Today it means: 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. Equivalent to one watt-second (one watt of power acting for a duration of one second). Full definition →

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joule · noun1

Named after English physicist James Prescott Joule (1818–1889). The surname is a variant of Joel.

Joule · proper noun2

A variant of Jewell, from Middle English, borrowed from Old Breton Judicaël, from iudd + cael.

Etymology from Wiktionary, CC BY-SA 4.0.