See also: Halogen

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EnglishEdit

EtymologyEdit

From halo- +‎ -gen.

PronunciationEdit

NounEdit

halogen ‎(plural halogens)

  1. (chemistry) Any element of group 17, i.e. fluorine, chlorine, bromine, iodine and astatine, which form a salt by direct union with a metal.

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