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- DictionaryPla·ton·ic sol·id/pləˈtänik ˈsäləd/
noun
- 1. one of five regular solids (a tetrahedron, cube, octahedron, dodecahedron, or icosahedron).
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- Platonic solid
Convex regular polyhedra with the same number of faces at each vertex
In geometry, a Platonic solid is a convex, regular polyhedron in three-dimensional Euclidean space. Being a regular polyhedron means that the faces are congruent (identical in shape and size) regular polygons (all angles congruent and all edges congruent), and the same number of faces meet at each vertex. There are only five such polyhedra: Wikipedia
