(nautical) A diving plane mounted on or near the stern of a submarine.

plural of London plane

plural of picture plane

clipping of paper airplane. / clipping of paper aeroplane.

Alternative spelling of bitplane

Alternative form of planetree / (mathematics) An ordered tree, a type of graph, in which the child nodes of each vertex have a definite number assigned.

Alternative form of spyplane

(astronomy) The plane that passes through the Earth's equator, or by extension the equators of other celestial bodies.

(astronomy) The ecliptic, the plane of the Earth's orbit around the Sun, or by extension the orbital planes of other celestial bodies.

plural of invariable plane