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Related to planography: planographic process
a method of body section radiography that shows in detail structures lying in a predetermined plane of the body while blurring structures in other planes, produced by movement of the film and x-ray tube in certain specified directions. adj., adj planigraph´ic.
Making of a radiographic image of a selected plane by means of reciprocal linear or curved motion of the x-ray tube and film cassette; images of all other planes are blurred ("out of focus") by being relatively displaced on the film.