'Polyhedral angle' definitions:

Definition of 'polyhedral angle'

noun

The space enclosed by three or more planes that intersect in a vertex

Definition of 'Polyhedral angle'

From: GCIDE

Polyhedral \Pol`y*he"dral\, Polyhedrical \Pol`y*hed"ric*al\, a. [See Polyhedron.] (Geom.) Having many sides, as a solid body. [1913 Webster]
Polyhedral angle, an angle bounded by three or more plane angles having a common vertex. [1913 Webster]

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