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orthodiagraphAn obsolete radiographic device that recorded the outline of various internal organs by eliminating the fluoroscopic image distortion.
orthodiagraph(or″thō-dī′ă-grăf) [″ + dia, through, + graphein, to write]
An instrument invented in 1912; formerly used to record the outlines and positions of internal organs or foreign bodies seen radiographically. The device is obsolete.