dichromate Chem.
(daɪˈkrəʊmət)
[f. di-2.]
A double chromate (q.v.), as potassium dichromate K2·CrO4·CrO3. (Also bichromate.)
| 1864 in Webster. 1876 Harley Mat. Med. (ed. 6) 71 Potassic dichromate. 1883 Athenæum 27 Oct. 538/1 [He] recommends potassium dichromate as an exceedingly useful disinfecting agent. |
Hence diˈchromated ppl. a., treated with a dichromate.
| 1890 Abney Treat. Photogr. (ed. 6) 178 The insolubility of dichromated gelatine. |