Caloric

1. a. Of or pertaining to caloric.
2. n. 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.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.