1. regular hexahedron a hexahedron with six equal squares as faces
  2. regular icosahedron an icosahedron with twenty equilateral triangles as faces
  3. regular octahedron an octahedron with eight equilateral triangles as faces
  4. regular polyhedron any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent
  5. regular tetrahedron a tetrahedron with four equilateral triangular faces
  6. regular dodecahedron a dodecahedron with twelve regular pentagons as faces
  7. regular hexagon a hexagon with six sides of equal length
  8. regular convex polyhedron any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent
  9. regularisation the act of bringing to uniformity; making regular
  10. regularization the act of bringing to uniformity; making regular
  11. hexahedron any polyhedron having six plane faces
  12. chlorhexidine a long-lasting liquid antiseptic
  13. trapezohedron a polyhedron whose faces are trapeziums
  14. roller coaster elevated railway in an amusement park
  15. regular polygon a polygon with all sides and all angles equal
  16. icosahedron any polyhedron having twenty plane faces
  17. nuclear explosion the explosion of an atomic bomb
  18. regular army a permanent organization of the military land forces of a nation or state
  19. tetrahedron any polyhedron having four plane faces
  20. regular recurrence recurring at regular intervals

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