Source : Webster's Revised Unabridged Dictionary (1913)

Araroba \Ar`a*ro"ba\, n. [Tupi.]
   1. Goa powder.

   2. A fabaceous tree of Brazil ({Centrolobium robustum})
      having handsomely striped wood; -- called also
      {zebrawood}.

Source : WordNet®

araroba
     n : a bitter yellow powder used to treat skin diseases [syn: {Goa
         powder}, {chrysarobin}]