Here you will find one or more explanations in English for the word biplane.
Also in the bottom left of the page several parts of wikipedia pages related to the word biplane and, of course, biplane synonyms and on the right images related to the word biplane.
Biplane
Biplane Bi"plane, n. [Pref. bi- + plane.] (A["e]ronautics)
An a["e]roplane with two main supporting surfaces one above
the other.
Biplane
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.
Meaning of biplane from wikipedia