noun
or platonic solid
: any of the five regular geometrical solids comprising the simple tetrahedron, hexahedron, octahedron, dodecahedron, and icosahedron
noun
or platonic solid
: any of the five regular geometrical solids comprising the simple tetrahedron, hexahedron, octahedron, dodecahedron, and icosahedron
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012