polyhedron : Idioms & Phrases
Index
concave polyhedron
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noun a polyhedron some of whose plane sections are concave polygons
WordNet
convex polyhedron
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noun a polyhedron any plane section of which is a convex polygon
WordNet
regular convex polyhedron
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noun any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent
ideal solid; Platonic body; Platonic solid; regular convex polyhedron; regular convex solid.
WordNet
Regular polyhedron
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noun any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent
ideal solid; Platonic body; Platonic solid; regular convex polyhedron; regular convex solid.
WordNet
(Geom.) , a polyhedron whose faces are equal regular polygons. There are five regular polyhedrons, the tetrahedron, the hexahedron, or cube, the octahedron, the dodecahedron, and the icosahedron.
Webster 1913
Salient polyhedron
(Geom.) , a polyhedron all of whose solid angles are salient.
