Platonic solid

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Platonic solid

n
(Mathematics) any of the five possible regular polyhedra: cube, tetrahedron, octahedron, icosahedron, and dodecahedron. Also called (esp formerly): Platonic body
[C17: named after Plato1, who was the first to list them]
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Noun1.Platonic solid - any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruentPlatonic solid - any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent
polyhedron - a solid figure bounded by plane polygons or faces
regular tetrahedron - a tetrahedron with four equilateral triangular faces
cube, regular hexahedron - a hexahedron with six equal squares as faces
regular dodecahedron - a dodecahedron with twelve regular pentagons as faces
regular octahedron - an octahedron with eight equilateral triangles as faces
regular icosahedron - an icosahedron with twenty equilateral triangles as faces
References in periodicals archive ?
The Platonic solids group includes convex regular polyhedrons that have similar regular polygons on all faces and each vertex is incident with an equal number of edges or faces.