Source : Webster's Revised Unabridged Dictionary (1913)

Sandalwood \San"dal*wood\, n. [F. sandal, santal, fr. Ar.
   [,c]andal, or Gr. sa`ntalon; both ultimately fr. Skr.
   candana. Cf. {Sanders}.] (Bot.)
   (a) The highly perfumed yellowish heartwood of an East Indian
       and Polynesian tree ({Santalum album}), and of several
       other trees of the same genus, as the Hawaiian {Santalum
       Freycinetianum} and {S. pyrularium}, the Australian {S.
       latifolium}, etc. The name is extended to several other
       kinds of fragrant wood.
   (b) Any tree of the genus {Santalum}, or a tree which yields
       sandalwood.
   (c) The red wood of a kind of buckthorn, used in Russia for
       dyeing leather ({Rhamnus Dahuricus}).

   {False sandalwood}, the fragrant wood of several trees not of
      the genus {Santalum}, as {Ximenia Americana}, {Myoporum
      tenuifolium} of Tahiti.

   {Red sandalwood}, a heavy, dark red dyewood, being the
      heartwood of two leguminous trees of India ({Pterocarpus
      santalinus}, and {Adenanthera pavonina}); -- called also
      {red sanderswood}, {sanders} or {saunders}, and
      {rubywood}.

Source : WordNet®

sandalwood
     n : close-grained fragrant yellowish heartwood of the true
         sandalwood; has insect-repelling properties and is used
         for carving and cabinetwork