Meaning | 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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Synonyms | F, atomic number 9 |
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Broader | chemical element, element | Any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter |
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gas | A fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely |
halogen | Any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions |
Substance of | cryolite, Greenland spar | A white mineral consisting of fluorides of aluminum and sodium |
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fluorapatite | A form of apatite in which fluorine predominates over chlorine |
fluorite, fluorspar, fluor | A soft mineral (calcium fluoride) that is fluorescent in ultraviolet light |
Spanish | flúor, número atómico 9 |
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Catalan | fluor, número atòmic 9 |
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