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BNC: 27314 COCA: 22313

ammonium

noun
/əˈməʊniəm/
/əˈməʊniəm/
[uncountable] (chemistry化学)
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  1. an ion made from ammonia containing nitrogen and hydrogen together with another element
    Word Originearly 19th cent.: from ammonia + -ium.
BNC: 27314 COCA: 22313
BNC: 27314 COCA: 22313
BNC: 27314 COCA: 22313

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