B2 noun #8,496 most common

halogen

UK /ˈheɪ.lə.d͡ʒən/ | US /ˈheɪ.lə.d͡ʒən/

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

halogen in 30 Seconds

  • (noun) Any element of group 17, i.e. fluorine, chlorine, bromine, iodine and astatine, which form a salt by direct union with a metal.
  • (noun) A light fixture in which the filament is surrounded by an atmosphere of a halogen gas,

Meanings

  1. 1
    noun Any element of group 17, i.e. fluorine, chlorine, bromine, iodine and astatine, which form a salt by direct union with a metal.
  2. 2
    noun A light fixture in which the filament is surrounded by an atmosphere of a halogen gas,
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