noun
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
• Hypernyms: ↑chemical element, ↑element, ↑gas, ↑halogen
• Substance Holonyms: ↑fluorite, ↑fluorspar, ↑fluor, ↑fluorapatite, ↑cryolite, ↑Greenland spar
Useful english dictionary. 2012.