2 definitions found for Ricinus

Ricinus n 1: a genus of herb having only one known species: castor-oil plant [syn: Ricinus, genus Ricinus]

Ricinus Ric"i*nus, n. [L., the castor-oil plant.] (Bot.) A genus of plants of the Spurge family, containing but one species (R. communis), the castor-oil plant. The fruit is three-celled, and contains three large seeds from which castor oil iss expressed. See Palma Christi.