ryania
noun
ry·a·nia
rīˈānēə
plural -s
1
: an insecticide made of a mixture of alkaloids from the ground stems of a tropical South American shrub (Patrisia pyrifera synonym Ryania speciosa) and used especially against the European corn borer
2
: the plant that yields ryania
Word History
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