HYOSCYAMINES
Noun
hyoscyamines
plural of hyoscyamine
Source: Wiktionary
HYOSCYAMINE
Hy`os*cy"a*mine, n. Etym: [See Hyoscyamus.] (Chem.)
Definition: An alkaloid found in henbane (Hyoscyamus niger), and regarded
as its active principle. It is also found with other alkaloids in the
thorn apple and deadly nightshade. It is extracted as a white
crystalline substance, with a sharp, offensive taste. Hyoscyamine is
isomeric with atropine, is very poisonous, and is used as a medicine
for neuralgia, like belladonna. Called also hyoscyamia, duboisine,
etc.
Source: Webster’s Unabridged Dictionary 1913 Edition