convallamarin

from The Century Dictionary.

• noun A bitter glucoside (C₂₃H₄₄O₁₂) obtained from Convallaria.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Chem.) A white, crystalline, poisonous substance, regarded as a glucoside, extracted from the lily of the valley (Convallaria Majalis). Its taste is first bitter, then sweet.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun organic chemistry A poisonous substance, regarded as a glucoside, extracted from the lily of the valley (Convallaria majalis).