Definition of potassium in English:



mass noun
  • The chemical element of atomic number 19, a soft silvery-white reactive metal of the alkali-metal group.

    • ‘Patients no longer needed extra sodium and restricted potassium.’
    • ‘It also involves the loss of important blood salts like potassium and sodium.’
    • ‘For example, lithium, sodium, and potassium comprised a triad of soft, highly reactive metals.’
    • ‘Calcium and potassium are two of the top nutrients of concern in Americans' diets.’
    • ‘He worked on light metal alloys and the electrolytic production of potassium and sodium.’
    • ‘Sodium, potassium and blood sugar levels were estimated using standard methods.’
    • ‘He should incorporate a salad, as the magnesium and potassium will help counteract the sodium.’
    • ‘He says a complete plant food with plenty of trace elements especially potassium and nitrogen and water it well in.’
    • ‘If you tend to be susceptible to cramps, try eating more foods that are high in potassium and calcium.’
    • ‘At the same time we consume about a third less potassium, so that the ratio of potassium to sodium has shifted quite dramatically.’
    • ‘These will include blood samples to find out levels of sodium, chloride, potassium and urea.’
    • ‘In that case potassium rather than sodium is exchanged with calcium and magnesium.’
    • ‘The second most abundant ion was potassium, followed by sodium, magnesium, manganese and iron.’
    • ‘This does not happen, however, because the cell membrane itself is impermeable to ions like sodium and potassium.’
    • ‘Diuretics reduce fluid retention in the body by encouraging the removal of salts such as potassium and sodium from the blood.’
    • ‘It is high in vitamins A and E, calcium and potassium, and low in calories.’
    • ‘Its high potassium, phosphorus and calcium help maintain high energy levels.’
    • ‘In a chemical sense, soap is a salt made up of a carboxylic acid and an alkali like sodium of potassium.’
    • ‘The plants are sustained by water, enriched with calcium, potassium, nitrogen and other fertilisers.’
    • ‘Nitrate crusts of potassium and calcium nitrate are most often found in caves and rock shelters in limestone areas.’


Early 19th century: from potash (earlier potass, from French potasse) + -ium.