Definition of Plano
1. Noun. A city in northeastern Texas (suburb of Dallas).
Medical Definition of Plano
1.
In optics, an optical surface which has been made substantially flat, the degree of flatness depending upon the performance required.
A plano-convex lens is a positive lens with one surface flat and the other convex. In the dictionary, plano is given only as a combining form, but in practical optics it is often used alone to denote any particularly flat surface-- that has been worked flat.
See: optical flat.
Origin: L. Planus.
(04 Mar 1998)
Lexicographical Neighbors of Plano
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