<p><b>1.</b> <def>The act of involving or infolding.</def>
<p><b>2.</b> <def>The state of being entangled or involved; complication; entanglement.</def>
<blockquote>All things are mixed, and causes blended, by mutual <b>involutions</b>. <i>Glanvill.</i></blockquote>
<p><b>3.</b> <def>That in which anything is involved, folded, or wrapped; envelope.</def>
<i>Sir T. Browne.</i>
<p><b>4.</b> <fld>(Gram.)</fld> <def>The insertion of one or more clauses between the subject and the verb, in a way that involves or complicates the construction.</def>
<p><b>5.</b> <fld>(Math.)</fld> <def>The act or process of raising a quantity to any power assigned; the multiplication of a quantity into itself a given number of times; -- the reverse of <i>evolution</i>.</def>
<p><b>6.</b> <fld>(Geom.)</fld> <def>The relation which exists between three or more sets of points, <mathex>a.a\'b7</mathex>, <i>b.b\'b7</i>, <mathex>c.c\'b7</mathex>, so related to a point O on the line, that the product <mathex>Oa.Oa\'b7</mathex> = <mathex>Ob.Ob\'b7</mathex> = <mathex>Oc.Oc\'b7</mathex> is constant. Sets of lines or surfaces possessing corresponding properties may be in <i>involution</i>.</def>
<p><b>7.</b> <fld>(Med.)</fld> <def>The return of an enlarged part or organ to its normal size, as of the <i>uterus</i> after pregnancy.</def>
<h1>Involve</h1> <Xpage=786>
<hw>In*volve"</hw> <tt>(?)</tt>, <tt>v. t.</tt> <wordforms>[<tt>imp. & p. p.</tt> <er>Involved</er> <tt>(?)</tt>; <tt>p. pr. & vb. n.</tt> <er>Involving</er>.]</wordforms> <ety>[L. <ets>involvere</ets>, <ets>involutum</ets>, to roll about, wrap up; pref. <ets>in-</ets> in + <ets>volvere</ets> to roll: cf. OF. <ets>involver</ets>. See <er>Voluble</er>, and cf. <er>Involute</er>.]</ety>
<p><b>1.</b> <def>To roll or fold up; to wind round; to entwine.</def>
<blockquote>Some of serpent kind . . . <b>involved</b> Their snaky folds. <i>Milton.</i></blockquote>
<p><b>2.</b> <def>To envelop completely; to surround; to cover; to hide; to <i>involve</i> in darkness or obscurity.</def>
<blockquote>And leave a sing\'8ad bottom all <b>involved</b> With stench and smoke. <i>Milton.</i></blockquote>
<p><b>3.</b> <def>To complicate or make intricate, as in grammatical structure.</def> "<i>Involved</i> discourses."
<i>Locke.</i>
<p><b>4.</b> <def>To connect with something as a natural or logical consequence or effect; to include necessarily; to imply.</def>
<blockquote>He knows His end with mine <b>involved</b>. <i>Milton.</i></blockquote>
<blockquote>The contrary necessarily <b>involves</b> a contradiction. <i>Tillotson.</i></blockquote>
<p><b>5.</b> <def>To take in; to gather in; to mingle confusedly; to blend or merge.</def> <mark>[R.]</mark>
<blockquote>The gathering number, as it moves along, <b>Involves</b> a vast involuntary throng. <i>Pope.</i></blockquote>
<blockquote>Earth with hell To mingle and <b>involve</b>. <i>Milton.</i></blockquote>
<p><b>6.</b> <def>To envelop, infold, entangle, or embarrass; <as>as, to <ex>involve</ex> a person in debt or misery</as>.</def>
<p><b>7.</b> <def>To engage thoroughly; to occupy, employ, or absorb.</def> "<i>Involved</i> in a deep study."
<i>Sir W. Scott.</i>
<p><b>8.</b> <fld>(Math.)</fld> <def>To raise to any assigned power; to multiply, as a quantity, into itself a given number of times; <as>as, a quantity <ex>involved</ex> to the third or fourth power</as>.</def>
<syn>Syn. -- To imply; include; implicate; complicate; entangle; embarrass; overwhelm.</syn> <usage> -- To <er>Involve</er>, <er>Imply</er>. <i>Imply</i> is opposed to <i>express</i>, or <i>set forth</i>; thus, an <i>implied</i> engagement is one fairly to be understood from the words used or the circumstances of the case, though not set forth in form. <i>Involve</i> goes beyond the mere interpretation of things into their necessary relations; and hence, if one thing <i>involves</i> another, it so contains it that the two must go together by an indissoluble connection. War, for example, <i>involves</i> wide spread misery and death; the premises of a syllogism <i>involve</i> the conclusion.</usage>
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