dichromate — any salt or ester of dichromic acid. Dichromate salts contain the ion Cr2O72–
Four-or-more syllable rhymes
sodium dichromate — a red or orange crystalline, water-soluble solid, Na 2 Cr 2 O 7 ⋅2H 2 O, used as an oxidizing agent in the manufacture of dyes and inks, as a corrosion inhibitor, a mordant, a laboratory reagent, in the tanning of leather, and in electroplating.
