Halogen meaning
[hal-uh-juh n, -jen, hey-luh-]
Definitions of halogen is:
  • noun halogen
    any of the electronegative elements, fluorine, chlorine, iodine, bromine, and astatine, that form binary salts by direct union with metals.
  • noun halogen
    Any of the elements fluorine, chlorine, bromine, iodine, and astatine, occupying group VIIA (17) of the periodic table. They are reactive nonmetallic elements that form strongly acidic compounds with hydrogen, from which simple salts can be made.
  • noun halogen
    chemical element