The Collaborative International Dictionary of English v.0.48:

babassu \babassu\ n.
   1. a tall feather palm of northern Brazil (Orbignya
      barbosiana) with hard-shelled nuts yielding a valuable
      oil () with hard-shelled nuts yielding a valuable oil ()
      and a kind of vegetable ivory.

   Syn: babassu palm, coco de macao, Orbignya phalerata,
        Orbignya spesiosa, Orbignya martiana.
        [WordNet 1.5] babbiting