hyoscyamus

noun
hyo·​scy·​a·​mus | \ -məs How to pronounce hyoscyamus (audio) \

Medical Definition of hyoscyamus

1 capitalized : a genus of poisonous Eurasian herbs of the family Solanaceae that have a capsular fruit and include the henbane (H. niger)
2 : the dried leaves of the henbane containing the alkaloids hyoscyamine and scopolamine and used as an antispasmodic and sedative

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