- a colorless, syrupy, water-soluble alkaloid, C17H21NO4, obtained from certain plants of the nightshade family, used chiefly as a sedative and mydriatic and to alleviate the symptoms of motion sickness.
- a colourless viscous liquid alkaloid extracted from certain plants, such as henbane: used in preventing travel sickness and as an anticholinergic, sedative, and truth serum. Formula: C 17 H 21 NO 4
