noun \ˌlü-mə-ˈnes-ən(t)s\

Definition of LUMINESCENCE

: the low-temperature emission of light produced especially by physiological processes (as in the firefly), by chemical action, by friction, or by electrical action; also : light produced by luminescence
lu·mi·nesce \-ˈnes\ intransitive verb, lu·mi·nesced lu·mi·nesc·ing
lu·mi·nes·cent \-ənt\ adjective

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