Source : Webster's Revised Unabridged Dictionary (1913)

   {Guinea plum} (Bot.), the fruit of {Parinarium excelsum}, a
      large West African tree of the order {Chrysobalane[ae]},
      having a scarcely edible fruit somewhat resembling a plum,
      which is also called {gray plum} and {rough-skin plum}.

   {Guinea worm} (Zo["o]l.), a long and slender African nematoid
      worm ({Filaria Medinensis}) of a white color. It lives in
      the cellular tissue of man, beneath the skin, and produces
      painful sores.