convex polyhedron

8.8

A solid shape with flat faces where any line between two points inside stays inside, for example a cube

noun
/kənˈvɛks ˌpɒlɪˈhiːdrən/

Specialized

: poliedro convexo

Unlike some other solid shapes, every face of a convex polyhedron is a convex polygon.

Examples

In geometry class, we studied the properties of the convex polyhedron known as a dodecahedron.
A cube is a classic example of a convex polyhedron.
A cube is a type of convex polyhedron.
Many convex polyhedra have symmetrical properties.
In geometry class, we learned that a convex polyhedron has all its faces as convex polygons.
The artist created a stunning sculpture in the shape of a convex polyhedron with intricate designs on each face.
The architect designed a building featuring a convex polyhedron to enhance its aesthetic appeal and structural integrity.

Antonyms

concave polyhedron

Specialized

9.5

A solid with flat faces that has an inward indentation

How Concave

concave polyhedron

Specialized

9.5

convex polyhedron

Specialized

8.8

Surface Forms

convex polyhedron singular

convex polyhedra plural

Morphology

convex + polyhedron

The meaning is directly compositional: 'convex' describes a geometric property applied to 'polyhedron', so a learner who knows both words can infer it denotes a polyhedron that is convex. This is a standard adjective+noun construction found across languages, making the sense immediately derivable rather than idiomatic.

Etymology

Convex polyhedron joins two simple ideas: convex means a shape that bulges outward with no dents, and polyhedron means a solid with 'many' 'faces'. So the name helps you remember it is a solid whose flat sides all face outwards, like a cube.