\Ca*lor"ic\, n. [L. calor heat; cf. F. calorique.]
(Physics)
The principle of heat, or the agent to which the phenomena of
heat and combustion were formerly ascribed; -- not now used
in scientific nomenclature, but sometimes used as a general
term for heat.
      Caloric expands all bodies.              --Henry.

\Ca*lor"ic\, a.
Of or pertaining to caloric.
{Caloric engine}, a kind of engine operated by heated air.