Noun: fluorine 'flor,een or 'flûr,een
- A nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite, cryolite or fluorapatite
"Fluorine is added to drinking water to prevent tooth decay";
- F, atomic number 9
Derived forms: fluorines
Type of: chemical element, element, gas, halogen
Part of: cryolite, fluor, fluorapatite, fluorite, fluorspar, Greenland spar
Encyclopedia: Fluorine