potassium
noun/pəˈtæsiəm/
/pəˈtæsiəm/
[uncountable] (symbol K)
- a chemical element. Potassium is a soft silver-white metal that exists mainly in compounds which are used in industry and farming.Topics Physics and chemistryc2Oxford Collocations DictionaryPotassium is used before these nouns:
- salt
Word Originearly 19th cent.: from potash (earlier potass, from French potasse) + -ium.
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potassium