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The study of geometric properties that are invariant under projection.
(Mathematics) the branch of geometry concerned with the properties of solids that are invariant under projection and section
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|Noun||1.||projective geometry - the geometry of properties that remain invariant under projection|
math, mathematics, maths - a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement
geometry - the pure mathematics of points and lines and curves and surfaces