The Collaborative International Dictionary of English v.0.48:
Angularity \An`gu*lar"i*ty\, n. The quality or state of being angular; angularness. [1913 Webster]WordNet (r) 3.0 (2006):
angularity n 1: a shape having one or more sharp angles [syn: angular shape, angularity] 2: the property possessed by a shape that has angles [ant: roundness]