halogen meaning

Definition of halogen

1. any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions

   Type of: group

   Kinds: astatine, bromine, chlorine, fluorine, iodine

halogen in a sentence

• Yanni uses low-voltage halogen lights.

How to pronounce halogen

halogen is pronounced /ˈhælədʒən/ in American English. It has 3 syllables, with the stress on the first syllable.