Dictionary
hy•os•cy•a•mus
Pronunciation: (hī"u-sī'u-mus), [key]—
n.
the dried leaves, with or without the tops, of the henbane,
Hyoscyamus niger, containing the alkaloids hyoscyamine and scopolamine, used in medicine.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.