(geology) A plane of separation between rock masses.

A plane for cutting from a board a wide shaving forming a scaleboard.

The cutting chisel of a joiner's plane.

(carpentry) A plane, convex in the direction of its length on the underside, for smoothing the concave faces of curved woodwork.

Ochna arborea, an African tree.

(anatomy) coronal plane

(anatomy) Any plane that divides the body into superior and inferior parts, roughly perpendicular to spine; transverse plane.

(anatomy) Any plane that divides the body into superior and inferior parts, roughly perpendicular to spine; transverse plane.

(mathematics) Describing two planes that do not intersect

(finite geometry) The finite projective plane of order 2, having the smallest possible number of points and lines, 7 each, with 3 points on every line and 3 lines through every point.