'Hyoscyamine' definitions:
Definition of 'hyoscyamine'
From: WordNet
noun
A poisonous crystalline alkaloid (isometric with atropine but more potent); used to treat excess motility of the gastrointestinal tract
Definition of 'Hyoscyamine'
From: GCIDE
- Hyoscyamine \Hy`os*cy"a*mine\, n. [See Hyoscyamus.] (Chem.) An alkaloid found in henbane (Hyoscyamus niger), and regarded as its active principle. It is also found with other alkaloids in the thorn apple and deadly nightshade. It is extracted as a white crystalline substance, with a sharp, offensive taste. Hyoscyamine is isomeric with atropine, is very poisonous, and is used as a medicine for neuralgia, like belladonna. Called also hyoscyamia, duboisine, etc. [1913 Webster]
Definition of 'hyoscyamine'
From: GCIDE
- Duboisine \Du*bois"ine\, n. (Med.) An alkaloid obtained from the leaves of an Australian tree (Duboisia myoporoides), and regarded as identical with hyoscyamine. It produces dilation of the pupil of the eye. [1913 Webster]