Part 355

<hw>Al`tru*is"tic</hw> <tt>(#)</tt>, <tt>a.</tt> <ety>[Cf. F. <ets>altruiste</ets>, a. See <er>Altruism</er>..]</ety> <def>Regardful of others; beneficent; unselfish; -- opposed to <ant>egoistic</ant> or <ant>selfish</ant>.</def> <i>Bain</i>. -- <wordforms><wf>Al`tru*is"tic*al*ly</wf>, <tt>adv.</tt></wordforms>

<h1>Aludel</h1> <Xpage=45>

<hw>Al"u*del</hw> <tt>(#)</tt>, <tt>n.</tt> <ety>[F. & Sp. <ets>aludel</ets>, fr. Ar. <ets>aluth\'bel</ets>.]</ety> <fld>(Chem.)</fld> <def>One of the pear-shaped pots open at both ends, and so formed as to be fitted together, the neck of one into the bottom of another in succession; -- used in the process of sublimation.</def>

<i>Ure.</i>

<h1>Alula</h1> <Xpage=45>

<hw>Al"u*la</hw> <tt>(#)</tt>, <tt>n.</tt> <ety>[NL., dim. of L. <ets>ala</ets> a wing.]</ety> <fld>(Zo\'94l.)</fld> <def>A false or bastard wing. See under <er>Bastard</er>.</def>

<h1>Alular</h1> <Xpage=45>

<hw>Al"u*lar</hw> <tt>(#)</tt>, <tt>a.</tt> <fld>(Zo\'94l.)</fld> <def>Pertaining to the alula.</def>

<h1>Alum</h1> <Xpage=45>

<hw>Al"um</hw> <tt>(#)</tt>, <tt>n.</tt> <ety>[OE. <ets>alum</ets>, <ets>alom</ets>, OF. <ets>alum</ets>, F. <ets>alun</ets>, fr. L. <ets>alumen</ets> alum.]</ety> <fld>(Chem.)</fld> <def>A double sulphate formed of aluminium and some other element (esp. an alkali metal) or of aluminium. It has twenty-four molecules of water of crystallization.</def>

<note>&hand; Common <i>alum</i> is the double sulphate of aluminium and potassium. It is white, transparent, very astringent, and crystallizes easily in octahedrons. The term is extended so as to include other double sulphates similar to alum in formula.</note>

<h1>Alum</h1> <Xpage=45>

<hw>Al"um</hw> <tt>(#)</tt>, <tt>v. t.</tt> <def>To steep in, or otherwise impregnate with, a solution of alum; to treat with alum.</def>

<i>Ure.</i>

<h1>Alumen</h1> <Xpage=45>

<hw>A*lu"men</hw> <tt>(#)</tt>, <tt>n.</tt> <ety>[L.]</ety> <fld>(Chem.)</fld> <def>Alum.</def>

<h1>Alumina</h1> <Xpage=45>

<hw>A*lu"mi*na</hw> <tt>(#)</tt>, <tt>n.</tt> <ety>[L. <ets>alumen</ets>, <ets>aluminis</ets>. See <er>Alum</er>.]</ety> <fld>(Chem.)</fld> <def>One of the earths, consisting of two parts of aluminium and three of oxygen, <chform>Al2O3</chform>.</def>

<note>&hand; It is the oxide of the metal aluminium, the base of aluminous salts, a constituent of a large part of the earthy siliceous minerals, as the feldspars, micas, scapolites, etc., and the characterizing ingredient of common clay, in which it exists as an impure silicate with water, resulting from the decomposition of other aluminous minerals. In its natural state, it is the mineral corundum.</note> <-- obtained commercially from the mineral bauxite, mined in large quantities. -->

<h1>Aluminate</h1> <Xpage=45>

<hw>A*lu`mi*nate</hw> <tt>(#)</tt>, <tt>n.</tt> <fld>(Chem.)</fld> <def>A compound formed from the hydrate of aluminium by the substitution of a metal for the hydrogen.</def>

<h1>Aluminated</h1> <Xpage=45>

<hw>A*lu"mi*na`ted</hw> <tt>(#)</tt>. <tt>a.</tt> <def>Combined with alumina.</def>

<h1>Alumine</h1> <Xpage=45>

<hw>Al"u*mine</hw> <tt>(#)</tt>, <tt>n.</tt> <ety>[F.]</ety> <def>Alumina.</def>

<i>Davy.</i>

<h1>Aluminic</h1> <Xpage=45>

<hw>Al`u*min"ic</hw> <tt>(#)</tt>, <tt>a.</tt> <def>Of or containing aluminium; <as>as, <ex>aluminic</ex> phosphate</as>.</def>