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Definitions for: Halogen
[n] any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions
Webster (1913) Definition: Hal"o*gen, n. [Gr. "a`ls, "alo`s, salt + -gen: cf. F.
halog[`e]ne.] (Chem.)
An electro-negative element or radical, which, by combination
with a metal, forms a haloid salt; especially, chlorine,
bromine, and iodine; sometimes, also, fluorine and cyanogen.
See Chlorine family, under Chlorine.
See Also: astatine, At, atomic number 17, atomic number 35, atomic number 53, atomic number 85, atomic number 9, Br, bromine, chlorine, Cl, F, fluorine, group, grouping, I, iodin, iodine
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