peucedanin

from Wiktionary, Creative Commons Attribution/Share-Alike License

• n. A tasteless white crystalline substance extracted from the roots of the sulphurwort (Peucedanum), masterwort (Imperatoria), and related plants.

from the GNU version of the Collaborative International Dictionary of English

• n. A tasteless white crystalline substance, extracted from the roots of the sulphurwort (Peucedanum), masterwort (Imperatoria), and other related plants; -- called also imperatorin.

from The Century Dictionary and Cyclopedia

• n. A non-azotized neutral vegetable principle, C12H12O3, discovered in the root of Peucedanum officinale, or sea-sulphurwort. It forms delicate white prisms, which are fusible, and soluble in alcohol and ether.
• n. A tasteless crystalline compound, C16H16O4, found in the root of Peucedanum officinale and Imperatoria Ostruthium.