Azimuth circle

	one of the great circles of the sphere intersecting each other in the zenith and nadir, and cutting the horizon at right angles.
	See under Azimuth.

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.

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