thermotic（adj.）
"of or relating to heat," 1874, adjective from Greek thermē "heat, feverish heat" (from PIE root *gwher- "to heat, warm"). Earlier, thermotics was proposed by Whewell as a name for the science which treats of heat (1831), along with photistics for that which treats of light, but they did not last. Related: Thermotical.
该词起源时间：1874年