Sandarach \San"da*rach\, Sandarac \San"da*rac\,, n. [L. sandaraca, Gr. ?.] 1. (Min.) Realgar; red sulphide of arsenic. [Archaic] 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.
sandarach n : a brittle and faintly aromatic translucent resin used in varnishes [syn: {sandarac}]