from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective resistant to heat passing through; heat-resistant, heat-proof
  • adjective medicine without an increase in temperature
  • adjective chemistry, of a chemical reaction involving no energy exchange


Sorry, no etymologies found.


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  • Rumford understood the athermic properties of a blanket of air-cells, thanks to the accumulated knowledge of his predecessors and his own studies and experiments.

    Social Life in the Insect World Jean-Henri Fabre 1869


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