| 单词 | fluorescence |
| 释义 | fluorescence /floo res"euhns, flaw-, floh-/, n. Physics, Chem. 1. the emission of radiation, esp. of visible light, by a substance during exposure to external radiation, as light or x-rays. Cf. phosphorescence (def. 1). 2. the property possessed by a substance capable of such emission. 3. the radiation so produced. [1852; FLUOR(SPAR) + -ESCENCE, on the model of OPALESCENCE, in reference to the mineral's newly discovered property] |
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