Ailantus \Ai*lan"tus\, n. [From aylanto, i. e., tree of heaven, the name of the tree in the Moluccas.]

(Bot.) A genus of beautiful trees, natives of the East Indies. The tree imperfectly di[oe]cious, and the staminate or male plant is very offensive when blossom.

Source: Webster's Revised Unabridged Dictionary (1913)