Obs. Chem. [f. BORAX: cf. sodium, potassium, etc.] The name at first given to BORON, when it was supposed to be a metal.
1808. Sir H. Davy, in Phil. Trans., XCIX. 85. There is strong reason to consider the boracic basis as metallic … and I venture to propose for it the name of boracium. Ibid. (1812), Chem. Philos., 245. The bodies … are six, hydrogene, azote, sulphur, phosphorus, carbon, and boracium or boron.
