fluor /flooˈər or -ör/

Fluorite

fluoresce /-ər-esˈ/ intransitive verb

To demonstrate fluorescence

fluorescein /-esˈē-in/ noun

A fluorescent dyestuff, C₂₀H₁₂O₅

fluorescˈence noun

1. The property of some substances (eg fluor) of emitting, when exposed to radiation, rays of greater wavelength than those received
2. The radiation thus emitted

fluorescˈent adjective

fluoric /-orˈik/ adjective

fluˈoridate, fluˈoridize or fluˈoridate, fluˈoridise transitive verb

To add a fluoride to (a water or milk supply)

fluoridāˈtion noun

fluˈoride noun

1. A compound of fluorine with another element or radical
2. Loosely, sodium fluoride or sodium monofluorophosphate as the active ingredient in toothpaste

fluˈorinate transitive verb

To introduce fluorine into a chemical compound

fluorināˈtion noun

fluˈorine /-ēn/ noun

A pale greenish-yellow gaseous element (symbol F; atomic no 9)

fluorite /flooˈər-īt/ noun

A mineral, calcium fluoride, commonly purple, also green, colourless, etc, crystallizing in cubes and octahedra, found abundantly in Derbyshire. Its coloured varieties may fluoresce strongly in ultraviolet light

fluorescence microscopy noun (biology)

Light microscopy in which the specimen is irradiated at wavelengths which will excite the natural or artificially introduced fluorochromes

fluorescent lighting noun

Brighter lighting obtained for the same consumption of electricity, by using fluorescent material to convert ultraviolet radiation into visible light

fluorescent screen noun

A screen coated on one side with a fluorescent material that can display X-ray images

fluorescent tube noun

The tube of a fluorescent electric light

fluorimeter see fluorometer below.

fluˈorocarbon noun (chem)

An alkane in which hydrogen atoms are replaced by fluorine atoms, any of a series of compounds of fluorine and carbon (corresponding to the hydrocarbons) highly resistant to heat and chemical action

fluˈorochrome noun (chem)

A molecule or chemical group which fluoresces on irradiation

fluorogˈraphy noun

Photography using fluorescence, esp in medical analysis

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