diathermanousadj.
/dʌɪəˈθəːmənəs/ Having the property of freely transmitting radiant heat; pervious to heat-rays; = diathermic adj. 1. (Corresponding to transparent or diaphanous in relation to light.)
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the world > matter > physics > electromagnetic radiation > heat > transmission of heat > [adjective] > transmitting freely
diathermanous1834
transcalent1834
diathermal1835
diathermic1840
diathermous1843
transcalescent1850
diathermant1871
transparent1871
1834 E. Turner Elem. Chem. 107 Melloni has..introduced a distinct name diathermanous, to denote free permeability to heat.
1854 J. Scoffern in Orr's Circle Sci. Chem. 103 We have transcalent and not-transcalent substances—otherwise called diathermanous and a-diathermanous.
1858 D. Lardner Hand-bk. Nat. Philos.: Hydrostatics, Pneumatics, & Heat (new ed.) 371 The only substance found to be perfectly diathermanous was rock salt. Plates of this crystal transmit nearly all the heat which enters them..Certain media which are nearly opaque are highly diathermanous, while others which are highly transparent are nearly athermanous.
1874 tr. G. Hartwig Aerial World vi. 75 The great diathermanous power of dry air.
1881 O. J. Lodge in Nature 20 Jan. 265/1 The ice, being less diathermanous than the vapour, will get heated first.
This entry has not yet been fully updated (first published 1895; most recently modified version published online March 2022).
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adj.1834