The Collaborative International Dictionary
Convallamarin
Convallamarin \Con*val"la*ma`rin\, n. [Convallaria + L. amarus bitter.] (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. [1913 Webster] ||
Wiktionary
convallamarin
n. (context organic compound English) A poisonous substance, regarded as a glucoside, extracted from the lily of the valley (''Convallaria majalis'').
Wikipedia
Convallamarin
Convallamarin is a crystalline glycoside extracted from Convallaria majalis.