Source : Webster's Revised Unabridged Dictionary (1913)

Bichromate \Bi*chro"mate\, n. [Pref. bi- + chromate.] (Chem.)
   A salt containing two parts of chromic acid to one of the
   other ingredients; as, potassium bichromate; -- called also
   {dichromate}.

Source : WordNet®

bichromate
     n : a salt of the hypothetical dichromic acid [syn: {dichromate}]