bilimbi

from WordNet (r) 3.0 (2006)

bilimbi
    n 1: East Indian evergreen tree bearing very acid fruit [syn:
         {bilimbi}, {Averrhoa bilimbi}]

from The Collaborative International Dictionary of English v.0.48

Bilimbi \Bi*lim"bi\, Bilimbing \Bi*lim"bing\, n. [Malay.]
   The berries of two East Indian species of {Averrhoa}, of the
   {Oxalide[ae]} or Sorrel family. They are very acid, and
   highly esteemed when preserved or pickled. The juice is used
   as a remedy for skin diseases. [Written also {blimbi} and
   {blimbing}.]
   [1913 Webster]