a radiographic technique for recording the motion of the boundary of the shadow of an object
The recording of variations or undulations, arterial or other, using an instrument called the kymograph. The tracing or other graphic record is called a kymogram. ... (12 Dec 1998) ... 
Type: Term Pronunciation: kī-mog′ră-fē Definitions: 1. Use of the kymograph.
kymograph, kymography 1. An instrument for graphically recording variations of pressure of a fluid; especially, of blood in the vessels of a living animal; a recording manometer; also called kymographion. Later used more widely; the instrument consists of a cylinder rotated by a clockwork or electric motor, together with a stylus designed to trace ...