Moringa \Mo*rin"ga\, prop. n. [Malayam murunggi.] (Bot.) A genus of trees of Southern India and Northern Africa. One species ({Moringa pterygosperma}) is the horse-radish tree, and its seeds, as well as those of {Moringa aptera}, are known in commerce as {ben} or {ben nuts}, and yield the oil called {oil of ben}. [1913 Webster]