biplane
n. இருதள வானுர்தி.
Bi"plane, n. [Pref. bi- + plane.] (Aëronautics) Defn: An aëroplane with two main supporting surfaces one above the other. Bi"plane, a. (Aëronautics) Defn: Having, or consisting of, two superposed planes, aërocurves, or the like; of or pertaining to a biplane; as, a biplane rudder.