azimuth circle
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Related to azimuth circle: pelorus
azimuth circle
[′az·ə·məth ‚sər·kəl] (design engineering)
A ring calibrated from 0 to 360° over a compass, compass repeater, radar plan position indicator, direction finder, and so on, which provides means for observing compass bearings and azimuths.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.