Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. that functions as a result of heat and magnetism

from the GNU version of the Collaborative International Dictionary of English

  • adj. Acting by the agency of heat and magnetism.

from The Century Dictionary and Cyclopedia

  • Relating to magnetism as modified by heat: noting a dynamo and motor of novel construction, devised by Edison, the operation of which depends on the fact that the intensity of magnetization of iron diminishes as the temperature increases.

Etymologies

pyro- +‎ magnetic (Wiktionary)

Examples

  • The pyromagnetic generator is based on the same phenomenon; its aim being of course to generate electrical energy directly from the heat of the combustible.

    Edison, His Life and Inventions, vol. 2

  • Several years ago, experimenting in this field, Edison devised and operated some ingenious pyromagnetic motors and generators, based, as the name implies, on the direct application of heat to the machines.

    Edison, His Life and Inventions, vol. 2

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