fluorescentflʊˈrɛs ənt, flɔ-, floʊ-
English Definitions:
fluorescent, fluorescent fixture (adj)
a lighting fixture that uses a fluorescent lamp
fluorescent (adj)
emitting light during exposure to radiation from an external source
fluorescent (adj)
brilliantly colored and apparently giving off light
"fluorescent colors"
fluorescent (Noun)
A fluorescent light
fluorescent (Adjective)
Of or relating to fluorescence
fluorescent (Adjective)
Exhibiting or produced by fluorescence
fluorescent (Adjective)
Emitting visible light as a result of the excitation of phosphors by ultraviolet photons produced by the passage of an electrical current through an inert gas infused with mercury.
fluorescent (Adjective)
Glowing as if with fluorescence; vivid
Fluorescent
Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation. It is a form of luminescence. In most cases, the emitted light has a longer wavelength, and therefore a lower photon energy, than the absorbed radiation. A perceptible example of fluorescence occurs when the absorbed radiation is in the ultraviolet region of the electromagnetic spectrum (invisible to the human eye), while the emitted light is in the visible region; this gives the fluorescent substance a distinct color that can only be seen when the substance has been exposed to UV light. Fluorescent materials cease to glow nearly immediately when the radiation source stops, unlike phosphorescent materials, which continue to emit light for some time after. Fluorescence has many practical applications, including mineralogy, gemology, medicine, chemical sensors (fluorescence spectroscopy), fluorescent labelling, dyes, biological detectors, cosmic-ray detection, vacuum fluorescent displays, and cathode-ray tubes. Its most common everyday application is in (gas-discharge) fluorescent lamps and LED lamps, in which fluorescent coatings convert UV or blue light into longer-wavelengths resulting in white light which can even appear indistinguishable from that of the traditional but energy- inefficient incandescent lamp. Fluorescence also occurs frequently in nature in some minerals and in many biological forms across all kingdoms of life. The latter may be referred to as biofluorescence, indicating that the fluorophore is part of or is extracted from a living organism (rather than an inorganic dye or stain). But since fluorescence is due to a specific chemical, which can also be synthesized artificially in most cases, it is sufficient to describe the substance itself as fluorescent.
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"fluorescent." Kamus.net. STANDS4 LLC, 2024. Web. 23 Oct. 2024. <https://www.kamus.net/english/fluorescent>.
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