Source : Webster's Revised Unabridged Dictionary (1913)

Chelerythrine \Chel`e*ryth"rine\, n. [Gr. ? celandine +
   'eryqro`s red.] (Chem.)
   An alkaloidal principle obtained from the celandine, and
   named from the red color of its salts. It is a colorless
   crystalline substance, and acts as an acrid narcotic poison.
   It is identical with {sanguinarine}.