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Meaning of convexo-concave

con•vex•o-con•cave

Pronunciation: (kun-vek'sō-kon-kāv'), [key]
— adj.
  1. concavo-convex.
  2. pertaining to or noting a lens in which the convex face has a greater degree of curvature than the concave face.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.