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