Polyhedral

One of the most common instances we see the word "polyhedral" (especially in geek society) is in reference to dice. Polyhedral dice are most commonly used in table-top RPGs and can have any number of sides, but the most common are 4, 6, 8, 10, 12, and 20.

Pol`y*he"dral (?), Pol`y*hed"ric*al (?), a. [See Polyhedron.] Geom.

Having many sides, as a solid body.

Polyhedral angle, an angle bounded by three or more plane angles having a common vertex.

© Webster 1913.