Webster's Revised Unabridged Dictionary · 1913

Ailantus

Ailantus ({not transcribed}) , noun

[From aylanto, that is, tree of heaven, the name of the tree in the Moluccas.]

(Botany) A genus of beautiful trees, natives of the East Indies. The tree imperfectly diocious, and the staminate or male plant is very offensive when blossom.