athermic

(a-thur´mik) without rise of temperature.
Found on http://www.encyclo.co.uk/local/21001

athermic

athermic 1. Without fever or with no rise of temperature.2. Not pervious (not open to passage or entrance) to heat or heat-rays.3. Afebrile or characterized by the absence of fever.4. Heatless.
Found on http://www.wordinfo.info/words/index/info/view_unit/2838/18

athermic

lacking heat
Found on http://phrontistery.info/a.html
No exact match found