Halogen

noun

/ˈheɪ.lə.d͡ʒən/

Word Frequency: 0.7

Definitions

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

2.nounA light fixture in which the filament is surrounded by an atmosphere of a halogen gas,

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