adiathermic

Adjective

adiathermic (not comparable)

1. impervious to heat
   • ... and athermanous be thrown aside , and that the denominations diathermic and adiathermic, which have a more regular formation , and are more conformable to the terminations of the new nomenclature , should be substituted for them .1843, Richard Taylor, Scientific Memoirs, Selected from the Transactions of Foreign Academies of Science and Learned Societies, and from Foreign Journals, page 534
   • 323 , glass was shown to be extremely adiathermic, for dark radiation , at any rate . It transmits luminous rays without much loss , but comparatively little heat is obtainable from these , as is evident from the curve in fig .1889, Henry George Madan, An Elementary Treatise on Heat, page 327