Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun regular_tetrahedron

1 sense of regular tetrahedron

Sense 1
regular tetrahedron -- (a tetrahedron with four equilateral triangular faces)
       => regular polyhedron, regular convex solid, regular convex polyhedron, Platonic body, Platonic solid, ideal solid -- (any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent)