sodium
noun /ˈsəʊdiəm/
/ˈsəʊdiəm/
[uncountable] (symbol Na)
- a chemical element. Sodium is a soft silver-white metal that is found naturally only in compounds, such as salt.
Topics Physics and chemistryc1钠 Collocations DictionarySodium is used before these nouns:- salt
词源early 19th cent.: from soda + -ium.