| fluorescent |
emitting light during exposure to radiation from an external source a lighting fixture that uses a fluorescent lamp brilliantly colored and apparently giving off light; "fluorescent colors"
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| fluoridation |
the addition of a fluoride to the water supply (to prevent dental decay)
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| fluorine |
a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite
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| fluor |
fluorite: a soft mineral (calcium fluoride) that is fluorescent in ultraviolet light; chief source of fluorine
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| fluorescence microscopy |
light microscopy in which the specimen is irradiated at wavelengths that excite fluorochromes
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