'Convexity' definitions:

Definition of 'convexity'

From: WordNet
noun
The property possessed by a convex shape [syn: convexity, convexness]
noun
A shape that curves or bulges outward [syn: convex shape, convexity]

Definition of 'Convexity'

From: GCIDE
  • Convexity \Con*vex"i*ty\, n.; pl. Convexities. [L. convexitas: cf. F. convexit['e].] The state of being convex; the exterior surface of a convex body; roundness. [1913 Webster]
  • A smooth, uniform convexity and rotundity of a globe. --Bentley. [1913 Webster]