Castor Bean :: Castor bean () The bean or seed of the castor-oil plant (Ricinus communis, or Palma Christi.).
Castor Oil :: Castor oil () A mild cathartic oil, expressed or extracted from the seeds of the Ricinus communis, or Palma Christi. When fresh the oil is inodorous and insipid..
Castoreum :: Castoreum (n.) A peculiar bitter orange-brown substance, with strong, penetrating odor, found in two sacs between the anus and external genitals of the beaver; castor; -- used in medicine as an antispasmodic, and by perfumers..
Castorin :: Castorin (n.) A white crystalline substance obtained from castoreum.
Castorite :: Castorite (n.) A variety of the mineral called petalite, from Elba..