Source : WordNet®

Bengal bean
     n : annual semi-woody vine of Asia having long clusters of
         purplish flowers and densely hairy pods; cultivated in
         southern United States for green manure and grazing [syn:
          {cowage}, {velvet bean}, {Benghal bean}, {Florida bean},
          {Mucuna pruriens utilis}, {Mucuna deeringiana}, {Mucuna
         aterrima}, {Stizolobium deeringiana}]