D defs.my
Entry 1 sense Webster, 1913

Cassius

· Cas·sius · IPA /ˈkæsi.əs/
01 n. A brownish purple pigment, obtained by the action of some compounds of tin upon certain salts of gold. It is used in painting and staining …
  1. 1.
    A brownish purple pigment, obtained by the action of some compounds of tin upon certain salts of gold. It is used in painting and staining porcelain and glass to give a beautiful purple color. Commonly called Purple of Cassius. Also: Purple of Cassius