Part 835

<h1>Azimuth</h1> <Xpage=108>

<hw>Az"i*muth</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[OE. <ets>azimut</ets>, F. <ets>azimut</ets>, fr. Ar. <ets>as-sum<?/t</ets>, pl. of <ets>as-samt</ets> a way, or perh., a point of the horizon and a circle extending to it from the zenith, <ets>as</ets> being the Arabic article: cf. It. <ets>azzimutto</ets>, Pg. <ets>azimuth</ets>, and Ar. <ets>samt-al-r\'be's</ets> the vertex of the heaven. Cf. <er>Zenith</er>.]</ety> <fld>(Astron. & Geodesy)</fld> <sd>(a)</sd> <def>The quadrant of an azimuth circle.</def> <sd>(b)</sd> <def>An arc of the horizon intercepted between the meridian of the place and a vertical circle passing through the center of any object; <as>as, the <ex>azimuth</ex> of a star; the <ex>azimuth</ex> or bearing of a line surveying.</as></def>

<note>&hand; 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 0&deg; to 360&deg;.</note>

<cs><mcol><col>Azimuth circle</col>, or <col>Vertical circle</col></mcol>, <cd>one of the great circles of the sphere intersecting each other in the zenith and nadir, and cutting the horizon at right angles.</cd> <i>Hutton</i>. -- <col>Azimuth compass</col>, <cd>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.</cd> -- <col>Azimuth dial</col>, <cd>a dial whose stile or gnomon is at right angles to the plane of the horizon.</cd> <i>Hutton</i>. -- <col>Magnetic azimuth</col>, <cd>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.</cd></cs>

<h1>Azimuthal</h1> <Xpage=108>

<hw>Az"i*muth`al</hw> <tt>(?)</tt>, <tt>a.</tt> <def>Of or pertaining to the azimuth; in a horizontal circle.</def>

<cs><col>Azimuthal error</col> <cd>of a transit instrument, its deviation in azimuth from the plane of the meridian.</cd></cs>

<h1>Azo-</h1> <Xpage=108>

<hw>Az"o-</hw> <tt>(?)</tt>. <ety>[See <er>Azote</er>.]</ety> <fld>(Chem.)</fld> <def>A combining form of <i>azote</i></def>; <sd>(a)</sd> <def>Applied loosely to compounds having nitrogen variously combined, as in cyanides, nitrates, etc.</def> <sd>(b)</sd> <def>Now especially applied to compounds containing a two atom nitrogen group uniting two hydrocarbon radicals, as in <i>azo</i>benzene, <i>azo</i>benzoic, etc. These compounds furnish many artificial dyes. See <er>Diazo-</er>.</def>

<h1>Azobenzene</h1> <Xpage=108>

<hw>Az`o*ben"zene</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[<ets>Azo-</ets> + <ets>benzene</ets>.]</ety> <fld>(Chem.)</fld> <def>A substance (<chform>C6H5.N2.C6H5</chform>) derived from nitrobenzene, forming orange red crystals which are easily fusible.</def>

<h1>Azoic</h1> <Xpage=108>

<hw>A*zo"ic</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[Gr. <?/ priv. + <?/ life, from <?/ to live.]</ety> <def>Destitute of any vestige of organic life, or at least of animal life; anterior to the existence of animal life; formed when there was no animal life on the globe; <as>as, the <ex>azoic</ex></as>. rocks.</def>

<cs><col>Azoic age</col> <fld>(Geol.)</fld>, <cd>the age preceding the existence of animal life, or anterior to the paleozoic tome. <i>Azoic<i> is also used as a noun, <i>age<i> being understood. See <er>Arch\'91an</er>, and <er>Eozoic</er>.</cd></cs>

<h1>Azoleic</h1> <Xpage=108>

<hw>Az`o*le"ic</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[<ets>Azo-</ets> + <ets>oleic</ets>.]</ety> <fld>(Chem.)</fld> <def>Pertaining to an acid produced by treating oleic with nitric acid.</def> <mark>[R.]</mark>

<h1>Azonic</h1> <Xpage=108>

<hw>A*zon"ic</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[Gr. <?/; <?/ priv. + <?/ zone, region.]</ety> <def>Confined to no zone or region; not local.</def>

<h1>Azorian</h1> <Xpage=108>

<hw>A*zo"ri*an</hw> <tt>(?)</tt>, <tt>a.</tt> <def>Of or pertaining to the Azores.</def> -- <def2><tt>n.</tt> <def>A native of the Azores.</def></def2>

<h1>Azote</h1> <Xpage=108>

<hw>Az"ote</hw> <tt>(?; 277)</tt>, <tt>n.</tt> <ety>[F. <ets>azote</ets>, fr. Gr. <?/ priv. + <?/ life; -- so named by Lavoisier because it is incapable of supporting life.]</ety> <def>Same as <er>Nitrogen</er>.</def> <mark>[R.]</mark>

<h1>Azoth</h1> <Xpage=108>

<hw>Az"oth</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[LL. <ets>azoch</ets>, <ets>azoth</ets>, fr. Ar. <ets>az-zauq</ets> mercury.]</ety> <fld>(Alchemy)</fld> <sd>(a)</sd> <def>The first principle of metals, <it>i. e.</it>, mercury, which was formerly supposed to exist in all metals, and to be extractable from them.</def> <sd>(b)</sd> <def>The universal remedy of Paracelsus.</def>

<h1>Azotic</h1> <Xpage=108>

<hw>A*zot"ic</hw> <tt>(?)</tt>, <tt>a.</tt> <fld>(Chem.)</fld> <def>Pertaining to azote, or nitrogen; formed or consisting of azote; nitric; <as>as, <ex>azotic</ex> gas; <ex>azotic</ex> acid.</as></def> <mark>[R.]</mark>

<i>Carpenter.</i>

<h1>Azotite</h1> <Xpage=108>