Definitions

from The Century Dictionary.

  • Impermeable to radiant heat; having the power of stopping radiant heat; opaque to heat.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective (Chem.) Not transmitting heat; -- opposed to diathermanous.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Not transmitting heat.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

Ancient Greek privative + to heat: compare French athermane.

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Examples

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