| radar | A system using beamed and reflected radio signals to and from an object in such a way that range, bearing, and other characteristics of the object may be determined. (12 Dec 1998) |
|---|---|
| radarkymography | An obsolete procedure involving the video tracking of heart motion by means of image intensification and closed circuit television during fluoroscopy; enabled cardiac motion to be measured by reproducible linear graphic tracing. (05 Mar 2000) |