Part 2798

<hw>Dec"ade</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[F. <ets>d\'82cade</ets>, L. <ets>decas</ets>, <ets>-adis</ets>, fr. Gr. <?/, fr. <?/ ten. See <er>Ten</er>.]</ety> <def>A group or division of ten; esp., a period of ten years; a decennium; <as>as, a <ex>decade</ex> of years or days; a <ex>decade</ex> of soldiers; the second <ex>decade</ex> of Livy.</as></def> <altsp>[Written also <asp>decad</asp>.]</altsp>

<blockquote>During this notable <b>decade</b> of years. <i>Gladstone.</i></blockquote>

<h1>Decadence, Decadency</h1> <Xpage=374>

<hw><hw>De*ca"dence</hw> <tt>(?)</tt>, <hw>De*ca"den*cy</hw> <tt>(?)</tt>,<hw> <tt>n.</tt> <ety>[LL. <ets>decadentia</ets>; L. <ets>de-</ets> + <ets>cadere</ets> to fall: cf. F. <ets>d\'82cadence</ets>. See <er>Decay</er>.]</ety> <def>A falling away; decay; deterioration; declension. "The old castle, where the family lived in their <i>decadence</i>.'</def>

<i>Sir W. Scott.</i>

<h1>Decadent</h1> <Xpage=374>

<hw>De*ca"dent</hw> <tt>(?)</tt>, <tt>a.</tt> <def>Decaying; deteriorating.</def>

<h1>Decadist</h1> <Xpage=374>

<hw>Dec"a*dist</hw> <tt>(?)</tt>, <tt>n.</tt> <def>A writer of a book divided into decades; <as>as, Livy was a <ex>decadist</ex></as>.</def> <mark>[R.]</mark>

<h1>Decagon</h1> <Xpage=374>

<hw>Dec"a*gon</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[Pref. <ets>deca-</ets> + Gr. <?/ a corner or angle: cf. F. <ets>d\'82cagone</ets>.]</ety> <fld>(Geom.)</fld> <def>A plane figure having ten sides and ten angles; any figure having ten angles. A <i>regular decagon</i> is one that has all its sides and angles equal.</def>

<h1>Decagonal</h1> <Xpage=374>

<hw>De*cag"o*nal</hw> <tt>(?)</tt>, <tt>a.</tt> <def>Pertaining to a decagon; having ten sides.</def>

<h1>Decagram, Decagramme</h1> <Xpage=374>

<hw><hw>Dec"a*gram</hw>, <hw>Dec"a*gramme</hw><hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[F. <ets>d\'82cagramme</ets>; Gr. <?/ ten + F. <ets>gramme</ets>. See <er>Gram</er>.]</ety> <def>A weight of the metric system; ten grams, equal to about 154.32 grains avoirdupois.</def>

<h1>Decagynia</h1> <Xpage=374>

<hw>Dec`a*gyn"i*a</hw> <tt>(?)</tt>, <tt>n. pl.</tt> <ety>[NL., fr. Gr. <?/ ten + <?/ a woman, a female.]</ety> <fld>(Bot.)</fld> <def>A Linn\'91an order of plants characterized by having ten styles.</def>

<h1>Decagynian, Deccagynous</h1> <Xpage=374>

<hw><hw>Dec`a*gyn"i*an</hw> <tt>(?)</tt>, <hw>Dec*cag"y*nous</hw> <tt>(?)</tt>,<hw> <tt>a.</tt> <ety>[Cf. F. <ets>d\'82cagyne</ets>.]</ety> <fld>(Bot.)</fld> <def>Belonging to the Decagynia; having ten styles.</def>

<h1>Decahedral</h1> <Xpage=374>

<hw>Dec`a*he"dral</hw> <tt>(?)</tt>, <tt>a.</tt> <def>Having ten sides.</def>

<h1>Decahedron</h1> <Xpage=374>

<hw>Dec`a*he"dron</hw> <tt>(?)</tt>, <tt>n.</tt>; <plu>pl. E. <plw>Decahedrons</plw> <tt>(#)</tt>, L. <plw>Decahedra</plw> <tt>(#)</tt></plu>. <ety>[Pref. <ets>deca-</ets> + <ets>Gr. <grk>'e`dra</grk> a seat, a base, fr. <grk>'e`zesthai</grk> to sit: cf. F. <ets>d\'82ca\'8adre</ets>.]</ety> <fld>(Geom.)</fld> <def>A solid figure or body inclosed by ten plane surfaces.</def> <altsp>[Written also, less correctly, <asp>decaedron</asp>.]</altsp>

<h1>Decalcification</h1> <Xpage=374>

<hw>De*cal`ci*fi*ca"tion</hw> <tt>(?)</tt>, <tt>n.</tt> <def>The removal of calcareous matter.</def>

<h1>Decalcify</h1> <Xpage=374>

<hw>De*cal"ci*fy</hw> <tt>(?)</tt>, <tt>v. t.</tt> <wordforms>[<tt>imp. & p. p.</tt> <er>Decalcified</er> <tt>(?)</tt>; <tt>p. pr. & vb. n.</tt> <er>Decalcifying</er>.]</wordforms> <def>To deprive of calcareous matter; thus, to <i>decalcify</i> bones is to remove the stony part, and leave only the gelatin.</def>

<h1>Decalcomania, Decalcomanie</h1> <Xpage=374>