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BNC: 37313 COCA: 20018

selenium

noun
/səˈliːniəm/
/səˈliːniəm/
[uncountable]
(symbol Se)
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  1. a chemical element. Selenium is a grey substance that is used in making electrical equipment and coloured glass. A lack of selenium in the human body can lead to illnesses such as depression.硒(化学元素,用于制造电气设备和有色玻璃,人体缺此元素可致抑郁等病)
    Word Originearly 19th cent.: modern Latin, from Greek selēnē ‘moon’.
BNC: 37313 COCA: 20018
BNC: 37313 COCA: 20018
BNC: 37313 COCA: 20018
selenium
Chemical elements: actinium, alkali metal, americium...

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