Dictionary
focal plane
noun
Definition of FOCAL PLANE
: a plane that is perpendicular to the axis of a lens or mirror and passes through the focus
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First Known Use of FOCAL PLANE
1889
Rhymes with FOCAL PLANE
acid rain, aeroplane, appertain, aquaplane, Aquitaine, ascertain, Bloemfontein, bullet train, cell membrane, cellophane, Charlemagne, Charles's Wain, chatelain, chatelaine, counterpane, daisy-chain, down the drain, entertain, featherbrain, foreordain, frangipane, free throw lane, gravy train, gyroplane, high-octane, hurricane, hydroplane, hyperplane, inclined plane, inhumane, Kwajalein, London plane, marocain, Mary Jane, memory lane, mise-en-scène, monoplane, Novocain, novocaine, paravane, paper-train, peneplain, pollen grain, Port of Spain, power train, preordain, pursuit plane, rattlebrain, rhizoplane, rocket plane, scatterbrain, shaggymane, Spanish Main, sugarcane, suzerain, take in vain, Tamerlane, tangent plane, terreplein, toilet train, tramontane, transmontane, unit train, urethane, wagon train, water main, weather vane, whooping crane, windowpane, yellow rain
Medical Dictionary
focal plane
noun
Medical Definition of FOCAL PLANE
: a plane that is perpendicular to the axis of a lens or mirror and passes through the focus
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