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BNC: 27425 COCA: 20626

halogen

noun
/ˈhælədʒən/
/ˈhælədʒən/
(chemistry化学)
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  1. any of a set of five chemical elements, including fluorine, chlorine and iodine, that react with hydrogen to form acids from which simple salts can be made. Halogens, in the form of gas, are used in lamps and cookers.卤素
    Oxford Collocations DictionaryHalogen is used before these nouns:
    • bulb
    • lamp
    • light
    See full entry
    Word Originmid 19th cent.: from Greek hals, halo- ‘salt’ + -gen.
BNC: 27425 COCA: 20626
BNC: 27425 COCA: 20626
BNC: 27425 COCA: 20626
halogen
Chemical elements: actinium, alkali metal, americium...
Words used to describe types of light: backlit, candlelit, direct...

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