juglone

1 definition found

juglone - Collaborative International Dictionary of English v.0.48 :

  Juglone \Ju"glone\, n. [L. juglans the walnut + -one.] (Chem.)
     A yellow crystalline substance (C10H6O3) resembling
     quinone, extracted from green shucks of the walnut (Juglans regia
     ); -- called also nucin. Chemically, it is
     5-hydroxy-1,4-naphthalenedione.
     [1913 Webster]