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WordReference Random House Unabridged Dictionary of American English © 2024fluo•res•cent (flŏŏ res′ənt, flô-, flō-),USA pronunciation adj. - Chemistry, Physicspossessing the property of fluorescence;
exhibiting fluorescence. - strikingly bright, vivid, or glowing:plastic toys in fluorescent colors.
n. - Electricitya lighting fixture that utilizes a fluorescent lamp.
Collins Concise English Dictionary © HarperCollins Publishers:: ˌfluoˈrescent /ˌflʊəˈrɛsənt/ adj - exhibiting or having the property of fluorescence
fluo•res•cence /flʊˈrɛsəns, flɔ-/USA pronunciation n. [uncountable]- Chemistry, Physicsthe giving off of radiation, esp. of visible light, by a substance exposed to light or x-rays.
- Chemistry, Physicsthe radiation so produced.
fluo•res•cent, adj. See -flu-. WordReference Random House Unabridged Dictionary of American English © 2024fluo•res•cence (flŏŏ res′əns, flô-, flō-),USA pronunciation n. [Physics, Chem.]- Chemistry, Physicsthe emission of radiation, esp. of visible light, by a substance during exposure to external radiation, as light or x-rays. Cf. phosphorescence (def. 1).
- Chemistry, Physicsthe property possessed by a substance capable of such emission.
- Chemistry, Physicsthe radiation so produced.
- fluor(spar) + -escence, on the model of opalescence, in reference to the mineral's newly discovered property 1852
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