CALEFACTION

calefaction. Calefaction, n. the act of warming or heating

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Cal′e‐fac″tion (?), n. [[L. calefactio: cf. F. caléfaction.]] 1. 1. The act of warming or heating; the production of heat in a body by the action of fire, or by communication of heat from other bodies.
2. 2. The state of being heated.