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|Noun||1.||plane section - (geometry) the area created by a plane cutting through a solid|
surface area, expanse, area - the extent of a 2-dimensional surface enclosed within a boundary; "the area of a rectangle"; "it was about 500 square feet in area"
geometry - the pure mathematics of points and lines and curves and surfaces
cross section - a section created by a plane cutting a solid perpendicular to its longest axis
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