Chem. [see BI- pref.2 III.] A salt containing two equivalents of chromic acid, e.g., the Bichromate of potash, used in photography and other arts; whence Bichromated, Bichromatized ppl. a.
1854. Scoffern, in Orrs Circ. Sc., Chem. 447. Heating bichromate of potash to whiteness.
1869. Echo, 15 Dec. The bichromated gelatine.
1870. Eng. Mech., 14 Jan., 428/3. A second bichromatised film is poured upon the first.