{ } n. [ L. sandaraca, Gr. &unr_;. ] 1. (Min.) Realgar; red sulphide of arsenic. [ Archaic ] [ 1913 Webster ]

2. (Bot. Chem.) A white or yellow resin obtained from a Barbary tree (Callitris quadrivalvis or Thuya articulata), and pulverized for pounce; -- probably so called from a resemblance to the mineral. [ 1913 Webster ]