"polyhedron" | Definition and Related Words

Noun

is a type of: solid - a three-dimensional shape
subtypes:
- convex polyhedron - a polyhedron any plane section of which is a convex polygon
- concave polyhedron - a polyhedron some of whose plane sections are concave polygons
- prism - a polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms
- pyramid - a polyhedron having a polygonal base and triangular sides with a common vertex
- tetrahedron - any polyhedron having four plane faces
- pentahedron - any polyhedron having five plane faces
- hexahedron - any polyhedron having six plane faces
- octahedron - any polyhedron having eight plane faces
- decahedron - any polyhedron having ten plane faces
- dodecahedron - any polyhedron having twelve plane faces
- icosahedron - any polyhedron having twenty plane faces
- ideal solid, platonic body, platonic solid, regular convex polyhedron, regular convex solid, regular polyhedron - any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent
- prismatoid - a polyhedron whose vertices all lie in one or the other of two parallel planes; the faces that lie in those planes are the bases of the prismatoid
- trapezohedron - a polyhedron whose faces are trapeziums