Hyoscyamus

·noun A genus of poisonous plants of the Nightshade family; henbane.

II. Hyoscyamus ·noun The leaves of the black henbane (Hyoscyamus niger), used in neuralgic and pectorial troubles.

hyoscyamus
hyoscyămus, i, m., = ὑοσκύαμος, the herb henbane , called also Apollinaris and altercum, Plin. ...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.