The Collaborative International Dictionary of English v.0.48:

bebeeru \be*bee"ru\ (b[-e]*b[=e]"r[udd]), n. [Written also
   bibiru.] [Native name.] (Bot.)
   A tropical South American tree (Nectandra Rodi[oe]i), the
   bark of which yields the alkaloid bebeerine, and the wood of
   which is known as green heart.
   [Webster 1913 Suppl.]