- thermal, thermic, caloric - relating to or associated with heat; "thermal movements of molecules"; "thermal capacity"; "thermic energy"; "the caloric effect of sunlight"
Antonym: nonthermal
- thermal - of or relating to hot a hot spring; "thermal water"
- thermal - caused by or designed to retain heat; "a thermal burn"; "thermal underwear"
Antonym: cold (indirect, via hot)
- thermal - caused by or designed to retain heat; "a thermal burn"; "thermal underwear"