adjective epi·thermal \¦epə̇, ¦epē+\

Definition of epithermal

  1. 1 :  deposited from warm waters at rather shallow depth under conditions in the lower ranges of temperature and pressure —used of mineral veins and ore deposits — compare hypothermal, mesothermal

  2. 2 :  having translational speeds and energies greater than those usually due to thermal agitation but less than those required for nuclear fission epithermal neutrons

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Origin and Etymology of epithermal

epi- + thermal

Seen and Heard

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feeling or affected by lethargy

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