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noun Etymology: fluorspar + opalescence Date: 1852 luminescence that is caused by the absorption of radiation at one wavelength followed by nearly immediate reradiation usually at a different wavelength and that ceases almost at once when the incident radiation stops; also the radiation emitted — compare phosphorescence

Оригинал статьи 'fluorescence' на сайте Словари и Энциклопедии на Академике