plane section

Thesaurus

Noun

1.

plane section - (geometry) the area created by a plane cutting through a solid section 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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