thermal, thermic, caloric
Meaning: relating to or associated with heat; "thermal movements of molecules"; "thermal capacity"; "thermic energy"; "the caloric effect of sunlight"
meaning of the word
Meaning: rising current of warm air
There's the most intense sort of thermal erosion you can imagine--the ice-cap melts in the spring to a sea, which boils away completely by the middle of the summer.
Here and there I could see puffs and jets of steam curling up into the air, called in Icelandic 'reykir,' issuing from thermal springs, and indicating by their motion the volcanic energy underneath.
Or the almost undefinable organic troubles revealed to us by the singing in the ears, constriction of the epigastrium, the jerks, the trembling, vertigo, or nausea--all this collection of organic troubles which comes more or less confusedly to our consciousness under the form of tactile, muscular, thermal, and other sensations.