Part 6085

<p><b>4.</b> <fld>(Med.)</fld> <def>Susceptible of irritation; unduly sensitive to irritants or stimuli. See <er>Irritation</er>, <tt>n.</tt>, 3.</def>

<syn>Syn. -- Excitable; irascible; touchy; fretful; peevish.</syn>

<h1>Irritableness</h1> <Xpage=790>

<hw>Ir"ri*ta*ble*ness</hw>, <tt>n.</tt> <def>Irritability.</def>

<h1>Irritably</h1> <Xpage=790>

<hw>Ir"ri*ta*bly</hw>, <tt>adv.</tt> <def>In an irritable manner.</def>

<h1>Irritancy</h1> <Xpage=790>

<hw>Ir"ri*tan*cy</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[From 1st <er>Irritant</er>.]</ety> <fld>(Scots Law)</fld> <def>The state or quality of being null and void; invalidity; forfeiture.</def>

<i>Burrill.</i>

<h1>Irritancy</h1> <Xpage=790>

<hw>Ir"ri*tan*cy</hw>, <tt>n.</tt> <ety>[From 2d <er>Irritant</er>.]</ety> <def>The state o quality of being irritant or irritating.</def>

<h1>Irritant</h1> <Xpage=790>

<hw>Ir"ri*tant</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[LL. <ets>irritants</ets>, <ets>-antis</ets>, p. pr. of <ets>irritare</ets> to make null, fr. L. <ets>irritus</ets> void; pref. <ets>ir-</ets> not + <ets>ratus</ets> established.]</ety> <fld>(Scots Law)</fld> <def>Rendering null and void; conditionally invalidating.</def>

<blockquote>The states elected Harry, Duke of Anjou, for their king, with this clause <b>irritant</b>; that, if he did violate any part of his oath, the people should owe him no allegiance. <i>Hayward.</i></blockquote>

<h1>Irritant</h1> <Xpage=790>

<hw>Ir"ri*tant</hw>, <tt>a.</tt> <ety>[L. <ets>irritans</ets>, <ets>-antis</ets>, p. pr. of <ets>irritare</ets>: cf. F. <ets>irritant</ets>. See <er>Irritate</er> to excite.]</ety> <def>Irritating; producing irritation or inflammation.</def>

<h1>Irritant</h1> <Xpage=790>

<hw>Ir"ri*tant</hw>, <tt>n.</tt> <ety>[Cf. F. <ets>irritant</ets>.]</ety>

<p><b>1.</b> <def>That which irritates or excites.</def>

<p><b>2.</b> <fld>(Physiol. & Med.)</fld> <def>Any agent by which irritation is produced; <as>as, a chemical <ex>irritant</ex>; a mechanical or electrical <ex>irritant</ex>.</as></def>

<p><b>3.</b> <fld>(Toxicology)</fld> <def>A poison that produces inflammation.</def>

<cs><col>Counter irritant</col>. <cd>See under <er>Counter</er>.</cd> -- <col>Pure irritant</col> <fld>(Toxicology)</fld>, <cd>a poison that produces inflammation without any corrosive action upon the tissues.</cd></cs>

<h1>Irritate</h1> <Xpage=790>

<hw>Ir"ri*tate</hw> <tt>(?)</tt>, <tt>v. t.</tt> <ety>[See 1 st <er>Irritant</er>.]</ety> <def>To render null and void.</def> <mark>[R.]</mark>

<i>Abp. Bramhall.</i>

<h1>Irritate</h1> <Xpage=790>

<hw>Ir"ri*tate</hw>, <tt>v. t.</tt> <wordforms>[<tt>imp. & p. p.</tt> <er>Irritated</er> <tt>(?)</tt>; <tt>p. pr. & vb. n.</tt> <er>Irritating</er> <tt>(?)</tt>.]</wordforms> <ety>[L. <ets>irritatus</ets>, p. p. of <ets>irritare</ets>. Of doubtful origin.]</ety>

<p><b>1.</b> <def>To increase the action or violence of; to heighten excitement in; to intensify; to stimulate.</def>