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calorescence
calorescence (ˌkæləˈrɛsəns) n (General Physics) physics the absorption of radiation by a body, subsequently re-emitted at a higher frequency (lower wavelength) ˌcaloˈrescent adjcalorescence
calorescence[‚kal·ə′res·əns] (physics) The production of visible light by infrared radiation; the transformation is indirect, the light being produced by heat and not by any direct change of wavelength. |