azimuth : Idioms & Phrases
Azimuth circle , or Vertical circle
- one of the great circles of the sphere intersecting each other in the zenith and nadir, and cutting the horizon at right angles. Hutton.
Webster 1913
Azimuth compass
- a compass resembling the mariner's compass, but having the card divided into degrees instead of rhumbs, and having vertical sights; used for taking the magnetic azimuth of a heavenly body, in order to find, by comparison with the true azimuth, the variation of the needle.
Webster 1913
Azimuth dial
- a dial whose stile or gnomon is at right angles to the plane of the horizon. Hutton.
Webster 1913
Magnetic azimuth
- an arc of the horizon, intercepted between the vertical circle passing through any object and the magnetic meridian. This is found by observing the object with an azimuth compass.
