Part 6072

<p><b>4.</b> <fld>(Opt.)</fld> <def>The apparent enlargement of a bright object seen upon a dark ground, due to the fact that the portions of the retina around the image are stimulated by the intense light; as when a dark spot on a white ground appears smaller, or a white spot on a dark ground larger, than it really is, esp. when a little out of focus.</def>

<h1>Irradicate</h1> <Xpage=789>

<hw>Ir*rad"i*cate</hw> <tt>(?)</tt>, <tt>v. t.</tt> <def>To root deeply.</def> <mark>[R.]</mark>

<h1>Irrational</h1> <Xpage=789>

<hw>Ir*ra"tion*al</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[L. <ets>irrationalis</ets>: cf. F. <ets>irrationnel</ets>. See <er>In-</er> not, and <er>Rational</er>.]</ety>

<p><b>1.</b> <def>Not rational; void of reason or understanding; <as>as, brutes are <ex>irrational</ex> animals</as>.</def>

<p><b>2.</b> <def>Not according to reason; absurd; foolish.</def>

<blockquote>It seemed utterly <b>irrational</b> any longer to maintain it. <i>I. Taylor.</i></blockquote>

<p><b>3.</b> <fld>(Math.)</fld> <def>Not capable of being exactly expressed by an integral number, or by a vulgar fraction; surd; -- said especially of roots. See <er>Surd</er>.</def>

<syn>Syn. -- Absurd; foolish; preposterous; unreasonable; senseless. See <er>Absurd</er>.</syn>

<h1>Irrationality</h1> <Xpage=789>

<hw>Ir*ra`tion*al"i*ty</hw> <tt>(?)</tt>, <tt>n.</tt> <def>The quality or state of being irrational.</def> "Brutish <i>irrationaliity</i>."

<i>South.</i>

<h1>Irrationally</h1> <Xpage=789>

<hw>Ir*ra"tion*al*ly</hw> <tt>(?)</tt>, <tt>adv.</tt> <def>In an irrational manner.</def>

<i>Boyle.</i>

<h1>Irrationalness</h1> <Xpage=789>

<hw>Ir*ra"tion*al*ness</hw>, <tt>n.</tt> <def>Irrationality.</def>

<h1>Irrebuttable</h1> <Xpage=789>

<hw>Ir`re*but"ta*ble</hw> <tt>(?)</tt>, <tt>a.</tt> <def>Incapable of being rebutted.</def>

<i>Coleridge.</i>

<h1>Irreceptive</h1> <Xpage=789>

<hw>Ir`re*cep"tive</hw> <tt>(?)</tt>, <tt>a.</tt> <def>Not receiving; incapable of receiving.</def>

<h1>Irreclaimable</h1> <Xpage=789>

<hw>Ir`re*claim"a*ble</hw> <tt>(?)</tt>, <tt>a.</tt> <def>Incapable of being reclaimed.</def> <i>Addison</i>. -- <wordforms><wf>Ir`re*claim"a*bly</wf>, <tt>ad<?/.</tt></wordforms>

<h1>Irrecognition</h1> <Xpage=789>

<hw>Ir*rec`og*ni"tion</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[Pref. <ets>in-</ets> not + <ets>recognition</ets>.]</ety> <def>A failure to recognize; absence of recognition.</def>

<i>Lamb.</i>