Source : Webster's Revised Unabridged Dictionary (1913)

Basswood \Bass"wood`\, n. (Bot.)
   The bass ({Tilia}) or its wood; especially, {T. Americana}.
   See {Bass}, the lime tree.

         All the bowls were made of basswood, White and polished
         very smoothly.                           --Longfellow.

Source : WordNet®

basswood
     n 1: soft light-colored wood of any of various linden trees; used
          in making crates and boxes and in carving and millwork
          [syn: {linden}]
     2: any of various deciduous trees of the genus Tilia with
        heart-shaped leaves and drooping cymose clusters of
        yellowish often fragrant flowers; several yield valuable
        timber [syn: {linden}, {linden tree}, {lime}, {lime tree}]