Source : Webster's Revised Unabridged Dictionary (1913)

Catalpa \Ca*tal"pa\, n. [From the language of the Indians of
   Carolina, where Catesby discovered this tree in the year
   1726.] (Bot.)
   A genus of American and East Indian trees, of which the best
   know species are the {Catalpa bignonioides}, a large,
   ornamental North American tree, with spotted white flowers
   and long cylindrical pods, and the {C. speciosa}, of the
   Mississipi valley; -- called also {Indian bean}.

Source : WordNet®

catalpa
     n : tree of the genus Catalpa with large leaves and white
         flowers followed by long slender pods [syn: {Indian bean}]