| 单词 | polyhedron |
| 释义 | polyhedron (once / 184677 pages) n WORD FAMILY polyhedron: polyhedra, polyhedrons USAGE EXAMPLESThese will be installed, recreating Morris’s exhibition of painted plywood polyhedron forms at New York’s Green Gallery in 1964. New York Times(Sep 16, 2016) These spaces, rendered in Victorian gray-browns, are disrupted by outlines of polygons and polyhedrons. Washington Post(Jun 10, 2016) “It’s not one of the most beautiful polyhedra,” he told me. The New Yorker(Apr 26, 2016) n a solid figure bounded by plane polygons or faces Hypo|Hyper convex polyhedron a polyhedron any plane section of which is a convex polygon concave polyhedrona polyhedron some of whose plane sections are concave polygons prisma polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms pyramida polyhedron having a polygonal base and triangular sides with a common vertex tetrahedronany polyhedron having four plane faces pentahedronany polyhedron having five plane faces hexahedronany polyhedron having six plane faces octahedronany polyhedron having eight plane faces decahedronany polyhedron having ten plane faces dodecahedronany polyhedron having twelve plane faces icosahedronany polyhedron having twenty plane faces Platonic body, Platonic solid, ideal solid, regular convex polyhedron, regular convex solid, regular polyhedronany one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent prismatoida 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 trapezohedrona polyhedron whose faces are trapeziums parallelepiped, parallelepipedon, parallelopiped, parallelopipedona prism whose bases are parallelograms quadrangular prisma prism whose bases are quadrangles triangular prisma prism whose bases are triangles rhombohedrona parallelepiped bounded by six similar faces (either rhombuses or parallelograms) regular tetrahedrona tetrahedron with four equilateral triangular faces cube, regular hexahedrona hexahedron with six equal squares as faces regular dodecahedrona dodecahedron with twelve regular pentagons as faces regular octahedronan octahedron with eight equilateral triangles as faces regular icosahedronan icosahedron with twenty equilateral triangles as faces prismoida prismatoid whose bases are polygons having the same number of sides and whose other faces are trapezoids or parallelograms solid a three-dimensional shape |
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