Archaic. a hypothetical fluid whose presence in matter was thought to determine its thermal state.
Origin of caloric
1785–95; < French calorique, equivalent to calor- (< Latin calor heat) + -ique -ic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
of or concerned with heat or calories
obsolete a hypothetical elastic fluid formerly postulated as the embodiment of heat
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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.
Online Etymology Dictionary, © 2010 Douglas Harper
Of or relating to calories.
Of or relating to heat.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.