Definition of hyoscyamine in English:

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Pronunciation: /ˌhʌɪə(ʊ)ˈsʌɪəmiːn/


[mass noun] Chemistry
A poisonous compound present in henbane, with similar properties to hyoscine.
  • Chemical formula: C17H23NO3.
Example sentences
  • The tropane alkaloids scopolamine and hyoscyamine were extracted and analysed from N. tabacum cultured hairy roots.
  • In all preceding studies, alkaloid production was measured as scopolamine and hyoscyamine only.
  • Scopolamine and hyoscyamine are most concentrated in the seeds and can cause anticholinergic poisoning in exposed persons.


Mid 19th century: from modern Latin hyoscyamus (from Greek huoskuamos 'henbane', from hus, huos 'pig' + kuamos 'bean') + -ine4.

For editors and proofreaders

Line breaks: hyos|cya¦mine

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