from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of various devices used to measure energy (in joules)

from the GNU version of the Collaborative International Dictionary of English

  • n. An integrating wattmeter for measuring the energy in joules expended in an electric circuit or developed by a machine.

from The Century Dictionary and Cyclopedia

  • n. Any form of energy-meter in which the joule is used as the unit of work or energy.


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