athermic, a.
(əˈθɜːmɪk)
[ad. F. athermique, f. a- 14 + Gr. θέρµη heat + -ic.]
a. That is not pervious to heat or heat-rays. Cf. adiathermic a. b. Without fever or rise of temperature (Dorland 1900). c. (See quot. 1909.)
| 1862 Catal. Internat. Exhib. II. xiii. 16 Melloni's apparatus for illustrating the athermic and diathermic character of minerals. 1909 Webster, Athermic, heatless; as, an athermic motor. |