Examples of “halogen” in a Sentence

noun In chemistry, a halogen is any element from group 17 of the periodic table, a group that includes fluorine, chlorine, bromine, iodine, astatine and tennessine.

• Chlorine and iodine are both halogens.
• The compound formed when a metal reacts with a halogen.
• Fluorine is the lightest of the halogens.

noun A halogen is also a light fixture whose filament sits inside an atmosphere of halogen gas.

• She switched on the halogen above the kitchen table.
• The garage light is an old halogen that gets very hot.
• We replaced the halogens in the hallway with LED bulbs.