| platonic solid | ทรงตันเพลโต [คณิตศาสตร์๑๙ ก.ค. ๒๕๔๗] |
| regular polyhedron | (n) any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent, Syn. ideal solid, Platonic body, regular convex solid, Platonic solid, regular convex polyhedron |