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
fluorapatite 1
rzeczownikdomena: substancja
Princeton WordNet [ver.3.1]
Angielski
Definicja
a form of apatite in which fluorine predominates over chlorine
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