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English

polytope

|pol-i-tope|

C2

🇺🇸

/ˈpɑːlɪtoʊp/

🇬🇧

/ˈpɒlɪtəʊp/

many-faced shape

Etymology
Etymology Information

'polytope' originates from Greek elements 'poly-' and 'topos', where 'poly-' meant 'many' and 'topos' meant 'place' or 'region'. The term was formed in modern mathematical usage from these Greek roots.

Historical Evolution

'polytope' was coined in modern (mathematical) usage by combining the Greek prefix 'poly-' with a form derived from 'topos' ('place'); it entered mathematical vocabulary (via New Latin/modern languages) as a term for multi-faced figures.

Meaning Changes

Initially the components literally conveyed 'many places' or 'many regions'; over time the composite 'polytope' came to mean a multi-faced geometric figure (in any dimension), a precise mathematical object.

Meanings by Part of Speech

Noun 1

a geometric object with flat (planar) faces in any number of dimensions; a generalization of polygons (2D) and polyhedra (3D) to higher dimensions.

A polytope can be defined as the convex hull of a finite set of points in some Euclidean space.

Synonyms

Noun 2

(Sometimes) specifically a convex polytope — a bounded intersection of finitely many half-spaces.

In many texts, the term polytope is used to mean a convex polytope unless nonconvex examples are mentioned.

Synonyms

Last updated: 2025/09/07 07:45