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BNC: 27425 COCA: 20626

halogen

Word family
Related topics: Elements
hal·o·gen /ˈhælədʒən/ noun  
1 [uncountableU] a halogen light uses halogen gas to produce light 〔用作光源的〕卤素
halogen bulb/lamp/light etc 卤素灯泡/卤素灯等
2. HCE[countableC, uncountableU] one of a group of five simple chemical substances that make compounds easily 卤素
Examples from the Corpus
Origin halogen
(1800-1900) Swedish Greek hals salt
hal·o·gen noun
Chinese
Syllable
Corpus

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