
1) Wing configuration
Found on
https://www.crosswordclues.com/clue/multiplane
[aeronautics] In aviation, a multiplane is a fixed-wing aircraft configuration featuring multiple wing planes. The wing planes may be stacked one above another, or one behind another, or both in combination. Types having a small number of planes have specific names and are not usually described as multiplanes: While triplane, quadruplane an...
Found on
http://en.wikipedia.org/wiki/Multiplane_(aeronautics)

• (n.) An aeroplane with three or more superposed main planes. • (a.) Having several or many planes or plane surfaces; as, a multiplane kite.
Found on
http://thinkexist.com/dictionary/meaning/multiplane/
Mul'ti·plane adjective Having several or many planes or plane surfaces; as, a
multiplane kite.
Found on
http://www.encyclo.co.uk/webster/M/114

a pseudo 3D effect created in 2D animation by separating artwork at different values in the z axis. (In plain English, the animation cels are placed at varying distances from the camera. Thus, if the camera moves towards the artwork, the distant artwork will seem to move slower towards us and nearer artwork will seem to move faster. The effect is o...
Found on
https://www.encyclo.co.uk/local/20511

An aeroplane or glider with two or more mainplanes one above the other. There have been several quadruplanes and many triplanes.
Found on
https://www.encyclo.co.uk/local/20784
No exact match found.