jervine

from The Century Dictionary.

• noun A crystalline alkaloid obtained from the root of Veratrum album, along with veratrine.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Chem.) A poisonous alkaloid resembling veratrine, and found with it in white hellebore (Veratrum album); -- called also jervina.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun organic chemistry A steroidal alkaloid, obtained from plants of the genus Veratrum, that is teratogenic