释义 |
ry·a·nia \rīˈānēə\ noun (-s) Etymology: New Latin Ryania (genus name of Ryania speciosa, the shrub from which it is made), from John Ryan, 18th century British physician + New Latin -ia 1. : an insecticide made of a mixture of alkaloids from the ground stems of a tropical So. American shrub (Patrisia pyrifera syn. Ryania speciosa) and used especially against the European corn borer 2. : the plant that yields ryania |