[f. prec. + -ATE.] A compound in which alumina acts the part of an acid; ‘a compound of alumina with one of the stronger bases.’ Watts.

1

1841.  Trimmer, Pract. Geol., 68. They have therefore by some chemists been named aluminates.

2

1869.  Phillips, Vesuv., x. 286. Aluminates are equally limited.

3

1873.  Fownes, Chem., 372. Spinell is an aluminate of magnesium.

4