hyo·​scy·​a·​mus -məs How to pronounce hyoscyamus (audio)
capitalized : a genus of poisonous Eurasian herbs of the family Solanaceae that have a capsular fruit and include the henbane (H. niger)
: the dried leaves of the henbane containing the alkaloids hyoscyamine and scopolamine and used as an antispasmodic and sedative

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Cite this Entry

“Hyoscyamus.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/hyoscyamus. Accessed 21 Jun. 2024.

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