Rhus :: Rhus (n.) A genus of shrubs and small treets. See Sumac.
Rhusma :: Rhusma (n.) A mixtire of caustic lime and orpiment, or tersulphide of arsenic, -- used in the depilation of hides..
Scirrhus :: Scirrhus (n.) An indurated organ or part; especially, an indurated gland..
Scirrhus :: Scirrhus (n.) A cancerous tumor which is hard, translucent, of a gray or bluish color, and emits a creaking sound when incised..