Part 3417

<hw>Dou"bler</hw> <tt>(?)</tt>, <tt>n.</tt> <p><b>1.</b> <def>One who, or that which, doubles.</def>

<p><b>2.</b> <fld>(Elec.)</fld> <def>An instrument for augmenting a very small quantity of electricity, so as to render it manifest by sparks or the electroscope.</def>

<h1>Double-ripper</h1> <Xpage=447>

<hw>Dou"ble-rip"per</hw> <tt>(?)</tt>, <tt>n.</tt> <def>A kind of coasting sled, made of two sleds fastened together with a board, one before the other.</def> <mark>[Local, U. S.]</mark>

<h1>Double-shade</h1> <Xpage=447>

<hw>Dou"ble-shade`</hw> <tt>(?)</tt>, <tt>v. t.</tt> <def>To double the natural darkness of (a place).</def>

<i>Milton.</i>

<h1>Doublet</h1> <Xpage=447>

<hw>Doub"let</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[In sense 3, OF. <ets>doublet</ets>; in sense 4, F. <ets>doublet</ets>, dim. of <ets>double</ets> double. See <er>Double</er>, <tt>a.</tt>]</ety>

<p><b>1.</b> <def>Two of the same kind; a pair; a couple.</def>

<p><b>2.</b> <fld>(Print.)</fld> <def>A word or words unintentionally doubled or set up a second time.</def>

<p><b>3.</b> <def>A close-fitting garment for men, covering the body from the neck to the waist or a little below. It was worn in Western Europe from the 15th to the 17th century.</def>

<p><b>4.</b> <fld>(Lapidary Work)</fld> <def>A counterfeit gem, composed of two pieces of crystal, with a color them, and thus giving the appearance of a naturally colored gem. Also, a piece of paste or glass covered by a veneer of real stone.</def>

<p><b>5.</b> <fld>(Opt.)</fld> <def>An arrangement of two lenses for a microscope, designed to correct spherical aberration and chromatic dispersion, thus rendering the image of an object more clear and distinct.</def>

<i>W. H. Wollaston.</i>

<p><b>6.</b> <pluf>pl.</pluf> (See No. 1.) <def>Two dice, each of which, when thrown, has the same number of spots on the face lying uppermost; <as>as, to throw <ex>doublets</ex></as>.</def>

<p><b>7.</b> <pluf>pl.</pluf> <ety>[Cf. Pr. <ets>doblier</ets>, <ets>dobler</ets> draughtboard.]</ety> <def>A game somewhat like backgammon.</def>

<i>Halliwell.</i>

<p><b>8.</b> <def>One of two or more words in the same language derived by different courses from the same original from; as, <i>crypt</i> and <i>grot</i> are <i>doublets</i>; also, <i>guard</i> and <i>ward</i>; <i>yard</i> and <i>garden</i>; <i>abridge</i> and <i>abbreviate</i>, etc.</as></def>

<h1>Doublethreaded</h1> <Xpage=447>

<hw>Dou"ble*thread`ed</hw> <tt>(?)</tt>, <tt>a.</tt> <p><b>1.</b> <def>Consisting of two threads twisted together; using two threads.</def>

<p><b>2.</b> <fld>(Mech.)</fld> <def>Having two screw threads instead of one; -- said of a screw in which the pitch is equal to twice the distance between the centers of adjacent threads.</def>

<h1>Double-tongue</h1> <Xpage=447>

<hw>Dou"ble-tongue`</hw> <tt>(?)</tt>, <tt>n.</tt> <def>Deceit; duplicity.</def>

<blockquote>Now cometh the sin of <b>double-tongue</b>, such as speak fair before folk and wickedly behind. <i>Chaucer.</i></blockquote>

<h1>Double-tongued</h1> <Xpage=447>

<hw>Dou"ble-tongued`</hw> <tt>(?)</tt>, <tt>a.</tt> <def>Making contrary declarations on the same subject; deceitful.</def>

<blockquote>Likewise must the deacons be grave, not <b>double-tongued</b>. <i>1 Tim. iii. 8.</i></blockquote>