a. Chem. [f. TUNGST(EN + -IC 1 b.] Pertaining to or formed from tungsten; applied to compounds in which tungsten combines as a hexad (see -IC 1 b), as tungstic acid, H2O.WO3 (formerly = t. oxide), tungstic chloride, WCl6, tungstic oxide, WO2; also to minerals containing tungsten, as tungstic ochre (see OCHRE sb. 2), native tungstic oxide, also called Tungstite.
1796. Hatchett, in Phil. Trans., LXXXVI. 286. In 1790, Mr. Heyer … made some experiments on this ore [molybdate of lead], from which he inferred that it was composed of lead, combined with the tungstic acid.
1836–41. Brande, Man. Chem. (ed. 5), 923. The Nitro-tungstate of Potassa is the salt originally described by Scheele [1781], as tungstic acid.
1868. Watts, Dict. Chem., V. 915. Tungstic compounds,… in which tungsten is hexatomic.
1868. Dana, Min. (ed. 5), 186. Tungstite.
