Xylostein
Pronunciation : Xy*los"te*in
Part of Speech : n.
Etymology : [Xylo- + Gr. (Chem.)
Definition : Defn: A glucoside found in the poisonous berries of a species of honeysuckle (Lonicera xylosteum), and extracted as a bitter, white, crystalline substance.
Source : Webster's Unabridged Dictionary, 1913