polyhedron

Definitions of polyhedron
  1. noun
    a solid figure bounded by plane polygons or faces
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    convex polyhedron
    a polyhedron any plane section of which is a convex polygon
    concave polyhedron
    a polyhedron some of whose plane sections are concave polygons
    prism
    a polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms
    pyramid
    a polyhedron having a polygonal base and triangular sides with a common vertex
    tetrahedron
    any polyhedron having four plane faces
    pentahedron
    any polyhedron having five plane faces
    hexahedron
    any polyhedron having six plane faces
    octahedron
    any polyhedron having eight plane faces
    decahedron
    any polyhedron having ten plane faces
    dodecahedron
    any polyhedron having twelve plane faces
    icosahedron
    any polyhedron having twenty plane faces
    Platonic body, Platonic solid, ideal solid, regular convex polyhedron, regular convex solid, regular polyhedron
    any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent
    prismatoid
    a polyhedron whose vertices all lie in one or the other of two parallel planes; the faces that lie in those planes are the bases of the prismatoid
    trapezohedron
    a polyhedron whose faces are trapeziums
    parallelepiped, parallelepipedon, parallelopiped, parallelopipedon
    a prism whose bases are parallelograms
    quadrangular prism
    a prism whose bases are quadrangles
    triangular prism
    a prism whose bases are triangles
    rhombohedron
    a parallelepiped bounded by six similar faces (either rhombuses or parallelograms)
    regular tetrahedron
    a tetrahedron with four equilateral triangular faces
    cube, regular hexahedron
    a hexahedron with six equal squares as faces
    regular dodecahedron
    a dodecahedron with twelve regular pentagons as faces
    regular octahedron
    an octahedron with eight equilateral triangles as faces
    regular icosahedron
    an icosahedron with twenty equilateral triangles as faces
    prismoid
    a prismatoid whose bases are polygons having the same number of sides and whose other faces are trapezoids or parallelograms
    type of:
    solid
    a three-dimensional shape
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