• synonyms


[hahy-uh-sahy-uh-muh s]
  1. the dried leaves, with or without the tops, of the henbane, Hyoscyamus niger, containing the alkaloids hyoscyamine and scopolamine, used in medicine.
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Origin of hyoscyamus

1700–10; < New Latin < Greek hyoskýamos, equivalent to hyós (genitive of hŷs hog) + kýamos bean
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for hyoscyamus


  1. any plant of the solanaceous genus Hyoscyamus, of Europe, Asia, and N Africa, including henbane
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Word Origin

C18: from New Latin, from Greek huoskuamos, from hus pig + kuamos bean; the plant was thought to be poisonous to pigs
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012