hyoscyamus Meaning, Definition & Usage

  1. noun genus of poisonous herbs: henbane
    genus Hyoscyamus.

WordNet

Hy`os*cy"a*mus noun
Etymology
L., fr. Gr. a sow, hog + a bean.
Definitions
  1. (Bot.) A genus of poisonous plants of the Nightshade family; henbane.
  2. (Med.) The leaves of the black henbane (Hyoscyamus niger), used in neuralgic and pectorial troubles.

Webster 1913