Part 6087

<h1>Irrotational</h1> <Xpage=790>

<hw>Ir`ro*ta"tion*al</hw> <tt>(?)</tt>, <tt>a.</tt> <fld>(Physics)</fld> <def>Not rotatory; passing from one point to another by a movement other than rotation; -- said of the movement of parts of a liquid or yielding mass.</def>

<i>Sir W. Thomson.</i>

<h1>Irrubrical</h1> <Xpage=790>

<hw>Ir*ru"bric*al</hw> <tt>(?)</tt>, <tt>a.</tt> <def>Contrary to the rubric; not rubrical.</def>

<h1>Irrugate</h1> <Xpage=790>

<hw>Ir"ru*gate</hw> <tt>(?)</tt>, <tt>v. t.</tt> <ety>[L. <ets>irrugatus</ets>, p. p. of <ets>irrugare</ets> to wrinkle.]</ety> <def>To wrinkle.</def> <mark>[Obs.]</mark>

<h1>Irrupted</h1> <Xpage=790>

<hw>Ir*rupt"ed</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[L. <ets>irruptus</ets>, p. p. of <ets>irrumpere</ets> to break in; pref. <ets>ir-</ets> in + <ets>rumpere</ets> to break or burst. See <er>Rupture</er>.]</ety> <def>Broken with violence.</def>

<h1>Irruption</h1> <Xpage=790>

<hw>Ir*rup"tion</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[L. <ets>irruptio</ets>: cf. F. <ets>irruption</ets>. See <er>Irrupted</er>.]</ety>

<p><b>1.</b> <def>A bursting in; a sudden, violent rushing into a place; <as>as, <ex>irruptions</ex> of the sea</as>.</def>

<blockquote>Lest evil tidings, with too rude <b>irruption</b> Hitting thy aged ear, should pierce too deep. <i>Milton.</i></blockquote>

<p><b>2.</b> <def>A sudden and violent inroad, or entrance of invaders; <as>as, the <ex>irruptions</ex> of the Goths into Italy</as>.</def>

<i>Addison.</i>

<syn>Syn. -- Invasion; incursion; inroad. See <er>Invasion</er>.</syn>

<h1>Irruptive</h1> <Xpage=790>

<hw>Ir*rup"tive</hw> <tt>(?)</tt>, <tt>a.</tt> <def>Rushing in or upon.</def>

<h1>Irvingite</h1> <Xpage=790>

<hw>Ir"ving*ite</hw> <tt>(?)</tt>, <tt>n.</tt> <fld>(Eccl.)</fld> <def>The common designation of one a sect founded by the Rev. Edward Irving (about 1830), who call themselves the Catholic Apostolic Church. They are highly ritualistic in worship, have an elaborate hierarchy of apostles, prophets, etc., and look for the speedy coming of Christ.</def>

<h1>Is-</h1> <Xpage=790>

<hw>Is-</hw> <tt>(?)</tt><def>. See <er>Iso-</er>.</def>

<h1>Is</h1> <Xpage=790>

<hw>Is</hw> <tt>(?)</tt>, <tt>v. i.</tt> <ety>[AS. <ets>is</ets>; akin to G. & Goth. <ets>ist</ets>, L. <ets>est</ets>, Gr. <?/, Skr. <ets>asti</ets>. <ets><?/<?/</ets>. Cf. <er>Am</er>, <er>Entity</er>, <er>Essence</er>, <er>Absent</er>.]</ety> <def>The third person singular of the substantive verb <i>be</i>, in the indicative mood, present tense; <as>as, he <ex>is</ex>; he <ex>is</ex> a man</as>. See <er>Be</er>.</def>

<note>&hand; In some varieties of the Northern dialect of Old English, <i>is</i> was used for all persons of the singular.</note>

<blockquote>For thy <b>is</b> I come, and eke Alain. <i>Chaucer.</i></blockquote>

<blockquote>Aye <b>is</b> thou merry. <i>Chaucer.</i></blockquote>

<note>&hand; The idiom of using the present for future events sure to happen is a relic of Old English in which the present and future had the same form; as, this year Christmas <i>is</i> on Friday.</note>