INCANDESCENCE
incandescence
(noun) light from heat
incandescence, glow
(noun) the phenomenon of light emission by a body as its temperature is raised
Source: WordNet® 3.1
Etymology
Noun
incandescence (usually uncountable, plural incandescences)
(physics) the emission of visible light by a hot body
the light so emitted
(by extension) great emotion, especially anger
Source: Wiktionary
In`can*des"cence, n. Etym: [Cf. F. incandescence.]
Definition: A white heat, or the glowing or luminous whiteness of a body
caused by intense heat.
Source: Webster’s Unabridged Dictionary 1913 Edition