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ATOMIC NUMBER 19
I. (noun)
Sense 1
Meaning:
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
Synonyms:
atomic number 19; K; potassium
Classified under:
Hypernyms ("atomic number 19" is a kind of...):
metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)
Holonyms ("atomic number 19" is a substance of...):
carnallite (a white or reddish mineral consisting of hydrous chlorides of potassium and magnesium; used as a fertilizer and as a source of potassium and magnesium)
kainite (a white mineral consisting of magnesium sulphate and potassium chloride; a source of potassium salts; used as a fertilizer)
langbeinite (a mineral consisting of potassium magnesium double sulphate; used as a fertilizer)
brine; saltwater; seawater (water containing salts)
sylvine; sylvite (a mineral consisting of native potassium chloride; an important ore of potassium that is found in sedimentary beds)
