Cas·sius 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 porcelain and glass to give a beautiful purple color. Commonly called Purple of Cassius.
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Cassius
n : prime mover in the conspiracy against Julius Caesar (died in
42 BC) [syn: Cassius Longinus, Gaius Cassius Longinus]