'Hyoscine' definitions:

Definition of 'hyoscine'

From: WordNet
noun
An alkaloid with anticholinergic effects that is used as a sedative and to treat nausea and to dilate the pupils in ophthalmic procedures; "transdermal scopolamine is used to treat motion sickness"; "someone sedated with scopolamine has difficulty lying" [syn: scopolamine, hyoscine]

Definition of 'Hyoscine'

From: GCIDE
  • Hyoscine \Hy*os"cine\, n. [See Hyoscyamus.] (Chem.) An alkaloid found with hyoscyamine (with which it is also isomeric) in henbane, and extracted as a white, amorphous, semisolid substance. [1913 Webster]