Bryonin

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Bryonin \Bry"o*nin\, n. (Chem.)
     A bitter principle obtained from the root of the bryony
     ({Bryonia alba} and {Bryonia dioica}). It is a white, or
     slightly colored, substance, and is emetic and cathartic.
     [1913 Webster]