CALORIFIC
calorific
(adjective) heat-generating; “the calorific properties of fuels”
Source: WordNet® 3.1
Adjective
calorific (comparative more calorific, superlative most calorific)
Relating to calories.
(physics) Relating to or producing heat or other energy.
Antonym: frigorific
(US, of food) High in calories and thus likely fattening.
Synonyms
• caloric (US)
Source: Wiktionary
Cal`o*rif"ic, a. Etym: [L. calorificus; calor heat + facere to make;
cf. F. calorifique.]
Definition: Possessing the quality of producing heat; heating. Calorific
rays, the invisible, heating rays which emanate from the sum, and
burning and heated bodies.
Source: Webster’s Unabridged Dictionary 1913 Edition