Part 930

<h1>Barycentric</h1> <Xpage=121>

<hw>Bar`y*cen"tric</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[Gr. <ets><?/</ets> heavy + <ets><?/</ets> center.]</ety> <def>Of or pertaining to the center of gravity. See <cref>Barycentric calculus</cref>, under <er>Calculus</er>.</def>

<h1>Baryphony</h1> <Xpage=121>

<hw>Ba*ryph"o*ny</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[Gr. <ets><?/</ets> heavy + <ets><?/</ets> a sound voice.]</ety> <fld>(Med.)</fld> <def>Difficulty of speech.</def>

<h1>Baryta</h1> <Xpage=121>

<hw>Ba*ry"ta</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[Gr. <ets><?/</ets> heavy. Cf. <er>Baria</er>.]</ety> <fld>(Chem.)</fld> <def>An oxide of barium (or barytum); a heavy earth with a specific gravity above 4.</def>

<h1>Barytes</h1> <Xpage=121>

<hw>Ba*ry"tes</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[Gr. <ets><?/</ets> heavy: cf. Gr. <ets><?/</ets> heaviness, F. <ets>baryte</ets>.]</ety> <fld>(Min.)</fld> <def>Barium sulphate, generally called <altname>heavy spar</altname> or <altname>barite</altname>. See <er>Barite</er>.</def>

<h1>Barytic</h1> <Xpage=121>

<hw>Ba*ryt"ic</hw> <tt>(?)</tt>, <tt>a.</tt> <def>Of or pertaining to baryta.</def>

<h1>Baryto-calcite</h1> <Xpage=121>

<hw>Ba*ry"to-cal"cite</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[<ets>Baryta</ets> + <ets>calcite</ets>.]</ety> <fld>(Min.)</fld> <def>A mineral of a white or gray color, occurring massive or crystallized. It is a compound of the carbonates of barium and calcium.</def>

<h1>Barytone, Baritone</h1> <Xpage=121>

<hw><hw>Bar"y*tone</hw>, <hw>Bar"i*tone</hw><hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[Gr. <ets><?/</ets>; <ets><?/</ets> heavy + <ets><?/</ets> tone.]</ety> <p><b>1.</b> <fld>(Mus.)</fld> <def>Grave and deep, as a kind of male voice.</def>

<p><b>2.</b> <fld>(Greek Gram.)</fld> <def>Not marked with an accent on the last syllable, the grave accent being understood.</def>

<h1>Barytone, Baritone</h1> <Xpage=121>

<hw><hw>Bar"y*tone</hw>, <hw>Bar"i*tone</hw><hw>, <tt>n.</tt> <ety>[F. <ets>baryton</ets>: cf. It. <ets>baritono</ets>.]</ety> <p><b>1.</b> <fld>(Mus.)</fld> <sd>(a)</sd> <def>A male voice, the compass of which partakes of the common bass and the tenor, but which does not descend as low as the one, nor rise as high as the other.</def> <sd>(b)</sd> <def>A person having a voice of such range.</def> <sd>(c)</sd> <def>The viola di gamba, now entirely disused.</def>

<p><b>2.</b> <fld>(Greek Gram.)</fld> <def>A word which has no accent marked on the last syllable, the grave accent being understood.</def>

<h1>Barytum</h1> <Xpage=121>

<hw>Ba*ry"tum</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[NL.]</ety> <fld>(Chem.)</fld> <def>The metal barium. See <er>Barium</er>.</def> <mark>[R.]</mark>

<h1>Basal</h1> <Xpage=121>

<hw>Ba"sal</hw> <tt>(?)</tt>, <tt>a.</tt> <def>Relating to, or forming, the base.</def>

<cs><col>Basal cleavage</col>. <cd>See under <er>Cleavage</er>.</cd> -- <col>Basal plane</col> <fld>(Crystallog.)</fld>, <cd>one parallel to the lateral or horizontal axis.</cd></cs>

<h1>Basal-nerved</h1> <Xpage=121>

<hw>Ba"sal-nerved`</hw> <tt>(?)</tt>, <tt>a.</tt> <fld>(Bot.)</fld> <def>Having the nerves radiating from the base; -- said of leaves.</def>

<h1>Basalt</h1> <Xpage=121>

<hw>Ba*salt"</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[N. <ets>basaltes</ets> (an African word), a dark and hard species of marble found in Ethiopia: cf. F. <ets>basalte</ets>.]</ety> <p><b>1.</b> <fld>(Geol.)</fld> <def>A rock of igneous origin, consisting of augite and triclinic feldspar, with grains of magnetic or titanic iron, and also bottle-green particles of olivine frequently disseminated.</def>

<note>&hand; It is usually of a greenish black color, or of some dull brown shade, or black. It constitutes immense beds in some regions, and also occurs in veins or dikes cutting through other rocks. It has often a prismatic structure as at the Giant's Causeway, in Ireland, where the columns are as regular as if the work of art. It is a very tough and heavy rock, and is one of the best materials for macadamizing roads.</note>