<h1>Acidifier</h1> <Xpage=15>
<hw>A*cid"i*fi`er</hw> <tt>(#)</tt>, <tt>n.</tt> <fld>(Chem.)</fld> <def>A simple or compound principle, whose presence is necessary to produce acidity, as oxygen, chlorine, bromine, iodine, etc.</def>
<h1>Acidify</h1> <Xpage=15>
<hw>A*cid"i*fy</hw> <tt>(#)</tt>, <tt>v. t.</tt> <wordforms>[<tt>imp. & p. p.</tt> <er>Acidified</er> <tt>(#)</tt>; <tt>p. pr. & vb. n.</tt> <er>Acidifying</er> <tt>(#)</tt>.]</wordforms> <ety>[L. <ets>acidus</ets> sour, acid + <ets>-fy</ets>: cf. F. <ets>acidifier</ets>.]</ety> <p><b>1.</b> <def>To make acid; to convert into an acid; <as>as, to <ex>acidify</ex> sugar</as>.</def>
<p><b>2.</b> <def>To sour; to imbitter.</def>
<blockquote>His thin existence all <b>acidified</b> into rage. <i>Carlyle.</i></blockquote>
<h1>Acidimeter</h1> <Xpage=15>
<hw>Ac`id*im"e*ter</hw> <tt>(#)</tt>, <tt>n.</tt> <ety>[L. <ets>acidus</ets> acid + <ets>-meter</ets>.]</ety> <fld>(Chem.)</fld> <def>An instrument for ascertaining the strength of acids.</def>
<i>Ure.</i>
<h1>Acidimetry</h1> <Xpage=15>
<hw>Ac`id*im"e*try</hw> <tt>(#)</tt>, <tt>n.</tt> <ety>[L. <ets>acidus</ets> acid + <ets>-metry</ets>.]</ety> <fld>(Chem.)</fld> <def>The measurement of the strength of acids, especially by a chemical process based on the law of chemical combinations, or the fact that, to produce a complete reaction, a certain definite weight of reagent is required.</def> -- <wordforms><wf>Ac`id*i*met"ric*al</wf> <tt>(#)</tt>, <tt>a.</tt></wordforms>
<h1>Acidity</h1> <Xpage=15>
<hw>A*cid"i*ty</hw> <tt>(#)</tt>, <tt>n.</tt> <ety>[L. <ets>acidites</ets>, fr. <ets>acidus</ets>: cf. F. <ets>acidit\'82</ets>. See <er>Acid</er>.]</ety> <def>The quality of being sour; sourness; tartness; sharpness to the taste; <as>as, the <ex>acidity</ex> of lemon juice</as>.</def>
<h1>Acidly</h1> <Xpage=15>
<hw>Ac"id*ly</hw> <tt>(#)</tt>, <tt>adv.</tt> <def>Sourly; tartly.</def>
<h1>Acidness</h1> <Xpage=15>
<hw>Ac"id*ness</hw> <tt>(#)</tt>, <tt>n.</tt> <def>Acidity; sourness.</def>
<h1>Acidulate</h1> <Xpage=15>
<hw>A*cid"u*late</hw> <tt>(#)</tt>, <tt>v. t.</tt> <wordforms>[<tt>imp. & p. p.</tt> <er>Acidulated</er> <tt>(#)</tt>; <tt>p. pr. & vb. n.</tt> <er>Acidulating</er> <tt>(#)</tt>.]</wordforms> <ety>[Cf. F. <ets>aciduler</ets>. See <er>Acidulous</er>.]</ety> <def>To make sour or acid in a moderate degree; to sour somewhat.</def>
<i>Arbuthnot.</i>
<h1>Acidulent</h1> <Xpage=15>
<hw>A*cid"u*lent</hw> <tt>(#)</tt>, <tt>a.</tt> <def>Having an acid quality; sour; acidulous.</def> "With anxious, <i>acidulent</i> face."
<i>Carlyle.</i>
<h1>Acidulous</h1> <Xpage=15>
<hw>A*cid"u*lous</hw> <tt>(#)</tt>, <tt>a.</tt> <ety>[L. <ets>acidulus</ets>, dim. of <ets>acidus</ets>. See Acid.]</ety> <def>Slightly sour; sub-acid; sourish; <as>as, an <ex>acidulous</ex> tincture</as>.</def>
<i>E. Burke.</i>
<cs><col>Acidulous mineral waters</col>, <cd>such as contain carbonic anhydride.</cd></cs>
<h1>Acierage</h1> <Xpage=15>
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