||Pur"pu*ra (?), n. [L., purple, purple fish: cf. F. purpura. See Purple.] 1. (Med.) A disease characterized by livid spots on the skin from extravasated blood, with loss of muscular strength, pain in the limbs, and mental dejection; the purples. Dunglison.

2. (Zoöl.) A genus of marine gastropods, usually having a rough and thick shell. Some species yield a purple dye.