Santonin :: Santonin (n.) A white crystalline substance having a bitter taste, extracted from the buds of levant wormseed and used as an anthelmintic. It occassions a peculiar temporary color blindness, causing objects to appear as if seen through a yellow glass..
Santoninic :: Santoninic (a.) Of or pertaining to santonin; -- used specifically to designate an acid not known in the free state, but obtained in its salts..