Main Entry: pro·to·ver·a·trine
Pronunciation: "prOt-O-'ver-&-"trEn, -tr&n
Function: noun
1 : either of two toxiccrystalline alkaloids obtained from hellebores of the genus Veratrum (especially V. viride of America and V. album of Europe) and used in the treatment of hypertension called alsorespectively protoveratrine A, protoveratrine B
2 : a mixture of protoveratrine A and B used to treat hypertension