Definition of potassium in English:

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Pronunciation: /pəˈtasēəm/


The chemical element of atomic number 19, a soft silvery-white reactive metal of the alkali metal group. (Symbol: K)
Example sentences
  • For example, lithium, sodium, and potassium comprised a triad of soft, highly reactive metals.
  • The plants are sustained by water, enriched with calcium, potassium, nitrogen and other fertilisers.
  • Its high potassium, phosphorus and calcium help maintain high energy levels.



Pronunciation: /pəˈtasik/
( Mineralogy )
Example sentences
  • The Lake George center, for instance, had three emplacements, one potassic, another sodic, and yet another with a mixed composition.
  • A scintillometer could make a radiometric survey at the same time which would distinguish potassic from sodic granites.
  • Most recent studies of potassic magma generation ascribe such characteristics to metasomatized portions of the subcontinental lithosphere.


Early 19th century: Latinization of potash or earlier potass (from French potasse) by Sir Humphry Lowry, who first separated the element from potash.

For editors and proofreaders

Syllabification: po·tas·si·um

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