Source : Webster's Revised Unabridged Dictionary (1913)

   {Macaw bush} (Bot.), a West Indian name for a prickly kind of
      nightshade ({Solanum mammosum}).

   {Macaw palm}, {Macaw tree} (Bot.), a tropical American palm
      ({Acrocomia fusiformis} and other species) having a
      prickly stem and pinnately divided leaves. Its nut yields
      a yellow butter, with the perfume of violets, which is
      used in making violet soap. Called also {grugru palm}.