Webster’s Revised Unabridged Dictionary · 1913
Convexo-plane
Con·vex′o-plane′, a. Convex on one side, and flat on the other; plano-convex.
Webster’s Revised Unabridged Dictionary · 1913
Con·vex′o-plane′, a. Convex on one side, and flat on the other; plano-convex.