PLANO-CONCAVE
Source: 567
Pla″no–con″cave (?), a. [[Plano- + concave.]] Plane or flat on one side, and concave on the other; as, a plano-concave lens. See Lens.
Source: 567
Pla″no–con″cave (?), a. [[Plano- + concave.]] Plane or flat on one side, and concave on the other; as, a plano-concave lens. See Lens.