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Definition of potassium noun from the Oxford Advanced American Dictionary

 

potassium

 noun
noun
NAmE//pəˈtæsiəm//
 
[uncountable] (symbol K)
 
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a chemical element. Potassium is a soft silver-white metal that exists mainly in compounds that are used in industry and farming.
See potassium in the Oxford Advanced Learner's Dictionary
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