natrium means synonym of sodium. Lexicurio rates it Sui generis — a strength score of 88 out of 100.
noun
- Synonym of sodium.“1874 June 19, H. Beins, The Successor of Steam, The Chemical News and Journal of Physical Science, Volume XXIX.—1874, page 267,
It occurred to us to make an experiment to see what degree the tension of the carbonic acid given off by natrium-bicarbonate would amount to, when heated in a closed space.”