\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.