hypothetical fluid in a now-discarded model of heat exchange, 1792, from French calorique, coined in this sense by Lavoisier, from Latin calorem "heat" (nominative calor; see calorie). The adjective is recorded from 1865.
noncaloric non·ca·lor·ic (nŏn'kə-lôr'ĭk)
Having few or no calories.
caloric ca·lor·ic (kə-lôr'ĭk)
Of or relating to calories.
Of or relating to heat.