Daphnin
Daphnin , noun
[Compare French daphnine.]
(a)
(Chemistry) A dark green bitter resin extracted from the mezereon (Daphne mezereum) and regarded as the essential principle of the plant.
(b)
(Chemistry) A white, crystalline, bitter substance, regarded as a glucoside, and extracted from Daphne mezereum and Daphne alpina. [Rare]