Found 2 items, similar to biplane.
English → English (WordNet) Definition: biplane biplane n : old fashioned airplane; has two wings one above the other
English → English (gcide) Definition: Biplane Biplane \Bi"plane\, n. [Pref. bi- + plane.] (A["e]ronautics) An a["e]roplane with two main supporting surfaces one above the other. [Webster 1913 Suppl.] Biplane \Bi"plane\, a. (A["e]ronautics) Having, or consisting of, two superposed planes, a["e]rocurves, or the like; of or pertaining to a biplane; as, a biplane rudder. [Webster 1913 Suppl.]