Helleborein

1 definition found

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

  Helleborein \Hel`le*bo"re*in\, n. (Chem.)
     A poisonous glucoside accompanying helleborin in several
     species of hellebore, and extracted as a white crystalline
     substance with a bittersweet taste. It has a strong action on
     the heart, resembling digitalin.
     [1913 Webster]