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^ Online Etymology Dictionary halogen.
See also: Halogen
- enPR: hăləjĕn
- (Received Pronunciation) IPA(key): /ˈhæ.ləˌd͡ʒɛn/
- (General American) IPA(key): /ˈhæ.lə.d͡ʒən/
halogen (plural halogens)
- (chemistry) Any element of group 17, i.e. fluorine, chlorine, bromine, iodine and astatine, which form a salt by direct union with a metal.
- A light fixture in which the filament is surrounded by an atmosphere of a halogen gas,
any element of group 17