Part 2453

<h1>Corrosion</h1> <Xpage=327>

<hw>Cor*ro"sion</hw> <tt>(k?r-r?"zh?n)</tt>, <tt>n.</tt> <ety>[LL. <ets>corrosio</ets>: cf. F. <ets>corrosion</ets>. See <er>Corrode</er>.]</ety> <def>The action or effect of corrosive agents, or the process of corrosive change; <as>as, the rusting of iron is a variety of <ex>corrosion</ex></as>.</def>

<blockquote><b>Corrosion</b> is a particular species of dissolution of bodies, either by an acid or a saline menstruum. <i>John Quincy.</i></blockquote>

<h1>Corrosive</h1> <Xpage=327>

<hw>Cor*ro"sive</hw> <tt>(k?r-r?"s?v)</tt>, <tt>a.</tt> <ety>[Cf. F. <ets>corrosif</ets>.]</ety> <p><b>1.</b> <def>Eating away; having the power of gradually wearing, changing, or destroying the texture or substance of a body; <as>as, the <ex>corrosive</ex> action of an acid</as>. "<i>Corrosive</i> liquors." <i>Grew</i>. "<i>Corrosive</i> famine."<i>Thomson</i>.</def>

<p><b>2.</b> <def>Having the quality of fretting or vexing.</def>

<blockquote>Care is no cure, but <b>corrosive</b>. <i>Shak.</i></blockquote>

<cs><col>Corrosive sublimate</col> <fld>(Chem.)</fld>, <cd>mercuric chloride, <chform>HgCl2</chform>; so called because obtained by sublimation, and because of its harsh irritating action on the body tissue. Usually it is in the form of a heavy, transparent, crystalline substance, easily soluble, and of an acrid, burning taste. It is a virulent poison, a powerful antiseptic, and an exellent antisyphilitic; called also <altname>mercuric bichloride</altname>. It is to be carefully distinguished from calomel, the mild chloride of mercury.</cd></cs>

<h1>Corrosive</h1> <Xpage=327>

<hw>Cor*ro"sive</hw>, <tt>n.</tt> <p><b>1.</b> <def>That which has the quality of eating or wearing away gradually.</def>

<blockquote>[<b>Corrosives</b>] act either directly, by chemically destroying the part, or indirectly by causing inflammation and gangrene. <i>Dunglison.</i></blockquote>

<p><b>2.</b> <def>That which has the power of fretting or irritating.</def>

<blockquote>Such speeches . . . are grievous <b>corrosives</b>. <i>Hooker.</i></blockquote>

-- <wordforms><wf>Cor*ro"sive*ly</wf>, <tt>adv.</tt> -- <wf>Cor*ro"sive*ness</wf>, <tt>n.</tt></wordforms>

<h1>Corroval</h1> <Xpage=327>

<hw>Cor*ro"val</hw> <tt>(kr-r?"v<it>a</it>l)</tt>, <tt>n.</tt> <def>A dark brown substance of vegetable origin, allied to curare, and used by the natives of New Granada as an arrow poison.</def>

<h1>Corrovaline</h1> <Xpage=327>

<hw>Cor*ro"va*line</hw> <tt>(-v?-l?n &or; -l?n)</tt>, <tt>n.</tt> <fld>(Chem.)</fld> <def>A poisonous alkaloid extracted from corroval, and characterized by its immediate action in paralyzing the heart.</def>

<h1>Corrugant</h1> <Xpage=327>

<hw>Cor"ru*gant</hw> <tt>(k?r"r?-g<it>a</it>nt)</tt>, <tt>a.</tt> <ety>[L. <ets>corrugans</ets>, <ets>p</ets>. <ets>pr</ets>. See <er>Corrugate</er>.]</ety> <def>Having the power of contracting into wrinkles.</def>

<i>Johnson.</i>

<h1>Corrugate</h1> <Xpage=327>

<hw>Cor"ru*gate</hw> <tt>(k?r"r?-g?t)</tt>, <tt>a.</tt> <ety>[L. <ets>corrugatus</ets>, p. p. of <ets>corrugare</ets>; <ets>cor-+ rugare</ets> to wrinkle, <ets>ruga</ets> wrinkle; of uncertain origin.]</ety> <def>Wrinkled; crumpled; furrowed; contracted into ridges and furrows.</def>

<h1>Corrugate</h1> <Xpage=327>

<hw>Cor"ru*gate</hw> <tt>(-g?t)</tt>, <tt>v. t.</tt> <wordforms>[<tt>imp. & p.p.</tt> <er>Corrugated</er> <tt>(-g?`t?d)</tt>; <tt>p. pr. & vb. n.</tt> <er>Corrugating</er> <tt>(-g?`t?ng)</tt>.]</wordforms> <def>To form or shape into wrinkles or folds, or alternate ridges and grooves, as by drawing, contraction, pressure, bending, or otherwise; to wrinkle; to purse up; <as>as, to <ex>corrugate</ex> plates of iron; to <ex>corrugate</ex> the forehead.</as></def>

<cs><col>Corrugated iron</col>, <cd>sheet iron bent into a series of alternate ridges and grooves in parallel lines, giving it greater stiffness.</cd> -- <col>Corrugated paper</col>, <cd>a thick, coarse paper corrugated in order to give it elasticity. It is used as a wrapping material for fragile articles, as bottles.</cd></cs>

<h1>Corrugation</h1> <Xpage=327>

<hw>Cor`ru*ga"tion</hw> <tt>(k?r`r?-g?"sh?n)</tt>, <tt>n.</tt> <ety>[Cf. F. <ets>corrugation</ets>.]</ety> <def>The act corrugating; contraction into wrinkles or alternate ridges and grooves.</def>