Chem. [f. TANTAL(UM + -ATE4.] A salt of tantalic acid.
1849. D. Campbell, Inorg. Chem., 275. Tantalates of the alkalies, obtained when a solution is evaporated, or by boiling, are acid insoluble salts.
1873. Watts, Fownes Chem. (ed. 11), 495. In all these minerals tantalum exists as a tantalate of iron and manganese.