sap·pan·wood or sa·pan·wood 
(sə-pănwd′, săpăn-, -ən-)
(sə-pănwd′, săpăn-, -ən-)n.
1. A tree (Caesalpina sappan) in the pea family, native to tropical Asia, having wood that yields a red dye.
2. The wood of this tree.
[Malay sapang + WOOD1.]