Plano concave definitions

Plano-concave

• (a.) Plane or flat on one side, and concave on the other; as, a plano-concave lens. See Lens.
Found on http://thinkexist.com/dictionary/meaning/plano-concave/

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Plano-concave

Pla'no-con'cave adjective [ Plano- + concave .] Plane or flat on one side, and concave on the other; as, a plano-concave lens. See Lens .
Found on http://www.encyclo.co.uk/webster/P/100

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