Definitions

1. adjective

Having or consisting of many faces or facets.

“The artist created a polyhedral sculpture using interlocking triangles.”

2. noun

A solid having many plane faces, as a die or a gemstone.

“The geologist studied the polyhedra in the crystal cave.”

3. noun

A polygon with four or more sides.

“The mathematician proved that a regular polyhedron can be inscribed in a sphere.”