halogen
US /ˈhæl.ə.dʒen/
UK /ˈhæl.ə.dʒen/
名词
1.
卤素
any of the five nonmetallic elements: fluorine, chlorine, bromine, iodine, and astatine, that constitute Group 17 (VIIA) of the periodic table. The halogens are reactive, electronegative, monovalent elements that form strongly acidic compounds with hydrogen from which salts can be formed.
示例:
•
Chlorine is a common halogen used in disinfectants.
氯是一种常用的卤素，用于消毒剂。
•
Iodine is an essential halogen for thyroid function.
碘是甲状腺功能必需的卤素。
2.
卤素灯
a type of light bulb that produces a very bright light, often used in car headlights or spotlights
示例:
•
My car has bright halogen headlights.
我的车有明亮的卤素大灯。
•
We installed new halogen lamps in the kitchen.
我们在厨房安装了新的卤素灯。