AZIMUTHS

Noun

azimuths

plural of azimuth

Source: Wiktionary


AZIMUTH

Az"i*muth, n. Etym: [OE. azimut, F. azimut, fr. Ar. as-sum, pl. of as-samt a way, or perh., a point of the horizon and a circle extending to it from the zenith, as being the Arabic article: cf. It. azzimutto, Pg. azimuth, and Ar. samt-al-ra's the vertex of the heaven. Cf. Zenith.] (Astron. & Geodesy) (a) The quadrant of an azimuth circle. (b) An arc of the horizon intercepted between the meridian of the place and a vertical circle passing through the center of any object; as, the azimuth of a star; the azimuth or bearing of a line surveying.

Note: In trigonometrical surveying, it is customary to reckon the azimuth of a line from the south point of the horizon around by the west from 0ยบ to 360ยบ. 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.

– 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.

– Azimuth dial, a dial whose stile or gnomon is at right angles to the plane of the horizon. Hutton.

– 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.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

29 April 2024

SUBDUCTION

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Coffee Trivia

Coffee has initially been a food โ€“ chewed, not sipped. Early African tribes consume coffee by grinding the berries together, adding some animal fat, and rolling the treats into tiny edible energy balls.

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