(mathematics) Of or pertaining to polytopes. / (chemistry) Describing any rearrangement reaction involving atoms or groups at the vertices of a polyhedron.

(geometry) A finite region of n-dimensional space bounded by hyperplanes (a geometric shape with flat sides, existing in any number of dimensions); the geometrical entity represented by the general term of the infinite sequence "point, line, polygon, polyhedron, ...".

Of or pertaining to a polytope / Occurring in two or more areas

plural of polytope

Of or relating to multiple topics.

plural of cross-polytope

plural of 4-polytope

(geometry) A four-dimensional polytope.

(geometry) A polytope that is the convex hull of points, two on each Cartesian axis of a Euclidean space, that are equidistant from the origin; an orthoplex.