Halogen (Noun)
Meaning
Any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions.
Classification
Nouns denoting substances.
Examples
- The lamp uses a halogen bulb that produces a bright white light.
- Chlorine is a halogen that is commonly used as a disinfectant in swimming pools.
- The halogen elements are highly reactive and readily form compounds with metals.
- Astatine is a highly radioactive halogen that is used in some medical treatments.
- The halogen family of elements includes fluorine, chlorine, bromine, iodine, and astatine.