from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An emetic substance obtained from bryony root.
from the GNU version of the Collaborative International Dictionary of English
- n. A bitter principle obtained from the root of the bryony (Bryonia alba and Bryonia dioica). It is a white, or slightly colored, substance, and is emetic and cathartic.
from The Century Dictionary and Cyclopedia
- n. A white intensely bitter principle, a glucoside (C48H80O19) extracted from the root of Bryonia alba and B. dioica. Also spelled brionin, brionine.
Chemically, the plant contains "bryonin," a medicinal substance which is intensely bitter; also malate and phosphate of lime, with gum, starch, and sugar.