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A poisonous white crystalline alkaloid, C17H23NO3, isometric with atropine and having similar uses but more potent effects.

[New Latin Hyoscyamus, henbane genus; see hyoscine + -ine.]


(ˌhaɪəˈsaɪəˌmiːn; -mɪn)
(Biochemistry) a poisonous alkaloid occurring in henbane and related plants: an optically active isomer of atropine, used in medicine in a similar way. Formula: C17H23NO3
[C19: from New Latin, from Greek huoskuamos (from hus pig + kuamos bean) + amine]


(ˌhaɪ əˈsaɪ əˌmin, -mɪn)

a poisonous alkaloid, C17H23NO3, obtained from henbane and other solanaceous plants, used as a sedative, analgesic, mydriatic, and antispasmodic.
[1855–60; hyoscyam (us) + -ine2]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hyoscyamine - a poisonous crystalline alkaloid (isometric with atropine but more potent); used to treat excess motility of the gastrointestinal tract
alkaloid - natural bases containing nitrogen found in plants
poison, poisonous substance, toxicant - any substance that causes injury or illness or death of a living organism


n hiosiamina
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