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Definition of Halogen
1. Noun. Any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions.
Specialized synonyms: Astatine, At, Atomic Number 85, Atomic Number 35, Br, Bromine, Atomic Number 17, Chlorine, Cl, Atomic Number 9, F, Fluorine, Atomic Number 53, I, Iodin, Iodine
Definition of Halogen
1. n. 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.
Definition of Halogen
1. Noun. (chemistry) Any element of group 7, i.e. fluorine, chlorine, bromine, iodine and astatine, which form a salt by direct union with a metal. ¹
¹ Source: wiktionary.com
Definition of Halogen
1. a nonmetallic element [n -S]
Medical Definition of Halogen
1.
Lexicographical Neighbors of Halogen
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