halogen

EnglishEdit

EtymologyEdit

From Ancient Greek ἅλς ‎(háls, salt) + -gen ‎(produce), referring to elements which produce a salt in union with a metal.

PronunciationEdit

NounEdit

halogen ‎(plural halogens)

  1. (chemistry) Any element of group 7, i.e. fluorine, chlorine, bromine, iodine and astatine, which form a salt by direct union with a metal.

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