Concavo-convex

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [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]

From WordNet (r) 2.0 [wn]:

  concavo-convex
       adj : concave on one side and convex on the other with the
             concavity being greater than the convexity