Halogen

Pronunciation

• enPR: hălÉ™jÄ•n
• IPA: /ˈhælÉ™dÍ¡Ê’É›n/

Origin

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

Full definition of halogen

Noun

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.

Related terms

• halide
• quartz halogen lamp