adiathermanousadj.
/(ˌ)eɪdʌɪəˈθəːmənəs/, /ˌadɪəˈθəːmənəs/, U.S. /ˌeɪˌdaɪəˈθərmənəs/, /ˌædiəˈθərmənəs/ Physics. Now rare.
= adiathermic adj.
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the world > matter > properties of materials > temperature > coldness > quality of being incombustible > [adjective] > impervious to heat
adiathermanous1837
adiathermic1843
intranscalent1846
athermic1862
1837 J. Liebig & W. G. Turner E. Turner's Elements of Chem. (ed. 6) 19 This may be expressed by the terms transcalent and intranscalent (trans through, caleo I heat), or diathermanous and adiathermanous (δια through, θερμαινω I heat), corresponding to the adjectives transparent and opaque as applied to light.
1884 A. Daniell Princ. Physics xv. 448 A body impervious to light is opaque, impervious to dark heat it is adiathermanous.
1925 J. Joly Surface-hist. Earth 179 The continents offer a nearly adiatherminous covering to the magma.
2004 U.S. Patent Applic. 2004/0229026 A1 4/2 It is important to choose the lowest temperature possible for preheating the design and more advantageous to choose an opal adiathermanous millefiori.
This entry has been updated (OED Third Edition, December 2011; most recently modified version published online March 2022).
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adj.1837