Pol`y*he"dron (?), n.; pl. E. Polyhedrons. (#), L. Polyhedra (#). [NL., fr. Gr. with many seats or sides; many + a seat or side: cf. F. polyedre.]
1. Geom.
A body or solid contained by many sides or planes.
2. Opt.
A polyscope, or multiplying glass.
© Webster 1913.