polyhedral angle 多面角
polyhedral angle[ noun ]
the space enclosed by three or more planes that intersect in a vertex
<noun.shape>
Polyhedral \Pol`y*he"dral\, Polyhedrical \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.