'Concavo-convex' definitions:

Definition of 'concavo-convex'

(from WordNet)
adjective
Concave on one side and convex on the other with the concavity being greater than the convexity

Definition of 'Concavo-convex'

From: GCIDE
  • Concavo-convex \Con*ca`vo-con"vex\, a.
  • 1. Concave on one side and convex on the other, as an eggshell or a crescent. [1913 Webster]
  • 2. (Optics) Specifically, having such a combination of concave and convex sides as makes the focal axis the shortest line between them. See Illust. under Lens. [1913 Webster]