halogen

Pronunciation

• enPR: hăləjĕn
• (UK) IPA ^(key): /ˈhæ.ləˌd͡ʒɛn/
• (US) IPA ^(key): /ˈhæ.lə.d͡ʒən/

• Audio (UK)

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Noun

Singular halogen

Plural halogens

1. (chemistry) A chemical element that is listed in the penultimate column of the periodic table. These elements have a charge of -1. Fluorine, chlorine and iodine are three of the halogens.