Akademik

planoconvex
Flat on one side and convex on the other; denoting a lens of that shape.

* * *

adj.
describing a structure, such as a lens, that is flat on one side and convex on the other.

* * *

pla·no·con·vex (pla″no-kon-veksґ) flat on one side and convex on the other; see under lens.

Medical dictionary. 2011.