Defn: Same as Ailantus.

AILANTUS Ai*lan"tus, n. Etym: [From aylanto, i. e., tree of heaven, the name of the tree in the Moluccas.] (Bot.)

Defn: A genus of beautiful trees, natives of the East Indies. The tree imperfectly di

AILERON
Ai"le*ron, n. [F., dim. of aile wing.]

1.

Defn: A half gable, as at the end of a penthouse or of the aisle of a church.

2. (Aëronautics) A small plane or surface capable of being manipulated by the pilot of a flying machine to preserve or destroy lateral balance; a hinged wing tip; a lateral stabilizing or balancing plane.

AILETTE
Ai*lette, n. Etym: [F. ailette, dim. of aile wing, L. ala.]

Defn: A small square shield, formerly worn on the shoulders of knights, — being the prototype of the modern epaulet. Fairholt.

AILMENT
Ail"ment, n.