atomic number 19 is a noun 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". It carries one recorded sense.
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
Definitions, synonyms and semantic relations for atomic number 19 come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.