halogen
/ˈhælədʒən/
noun
- Any of the group of chemical elements (fluorine, chlorine, bromine, iodine, astatine) that form salts when combined with metals and are used in many everyday products.
- Chlorine is a halogen commonly used to disinfect swimming pools.
- The chemist explained how halogens react with metals to form salts.
- Halogens are found in many household items like bleach and table salt.
- A type of light bulb that contains a halogen gas, producing a bright, white light.
- Halogen lamps are often used in car headlights for their brightness.
- He replaced the old bulbs with halogens to get better visibility in the garage.
- The kitchen was lit by bright halogen lights above the counter.
adjective
- Relating to or containing a halogen element.
- The lab tested the water for halogen levels.
- The halogen lamp uses a special gas to make the light brighter.
- Some halogen compounds are used in fire extinguishers.