Definition of POTASSIUM

potassium

Plural: potassiums

Noun

  • a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
  • A soft, waxy, silvery reactive metal that is never found unbound in nature; an element (symbol K) with an atomic number of 19 and atomic weight of 39.0983. The symbol is derived from the Latin kalium.
  • A single atom of this element.

Origin / Etymology

Coined by British chemist Humphry Davy in 1807, from potassa (a Latinized form of potash) + -ium.

Synonyms

atomic number 19, K, kalium

Scrabble Score: 13

potassium: valid Scrabble (US) TWL Word
potassium: valid Scrabble Word in Merriam-Webster MW Dictionary
potassium: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 16

potassium: valid Words With Friends Word