Part 3951

<hw>Eth*nol"o*gy</hw> <tt>(?)</tt> <tt>n.</tt> <ety>[Gr. <?/ nation + <ets>-logy</ets>.]</ety> <def>The science which treats of the division of mankind into races, their origin, distribution, and relations, and the peculiarities which characterize them.</def>

<h1>Ethologic, Ethological</h1> <Xpage=513>

<hw><hw>Eth`o*log"ic</hw> <tt>(?)</tt>, <hw>Eth`o*log"ic*al</hw> <tt>(?)</tt>,<hw> <tt>a</tt> <ety>[See <er>Ethology</er>.]</ety> <def>treating of, or pertaining to, ethnic or morality, or the science of character.</def>

<i>J. S. Mill.</i>

<h1>Ethologist</h1> <Xpage=513>

<hw>E*thol"o*gist</hw> <tt>(?)</tt> <tt>n.</tt> <def>One who studies or writes upon ethology.</def>

<h1>Ethology</h1> <Xpage=513>

<hw>E*thol"o*gy</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[Gr. <?/ a depicting of character; <?/ custom, moral nature + <?/ to speak.]</ety>

<p><b>1.</b> <def>A treatise on morality; ethics.</def>

<p><b>2.</b> <def>The science of the formation of character, national and collective as well as individual.</def>

<i>J. S. Mill.</i>

<h1>Ethopoetic</h1> <Xpage=513>

<hw>Eth"o*po*et"ic</hw> <tt>(?)</tt>. <ety>[Gr. <?/; <?/ custom, manners + <?/ to make or form.]</ety> <def>Expressing character.</def> <mark>[Obs.]</mark>

<i>Urquhart.</i>

<h1>Ethule</h1> <Xpage=513>

<hw>Eth"ule</hw> <tt>(?)</tt> <ety>[Ether + Gr. <?/ substance, base. Cf. <er>Ethyl</er>, and see <er>-yl</er>.]</ety> <fld>(Chem.)</fld> <def>Ethyl.</def> <mark>[Obs.]</mark>

<h1>Ethyl</h1> <Xpage=513>

<hw>Eth"yl</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[<ets>Ether</ets> + <ets>-yl</ets>.]</ety> <fld>(Chem.)</fld> <def>A monatomic, hydrocarbon radical, <chform>C2H5</chform> of the paraffin series, forming the essential radical of ethane, and of common alcohol and ether.</def>

<cs><col>Ethyl aldehyde</col>. <fld>(Chem.)</fld> <cd>See <er>Aldehyde</er>.</cd></cs>

<h1>Ethylamine</h1> <Xpage=513>

<hw>Eth`yl*am"ine</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[<ets>Ethyl</ets> + <ets>amine</ets>.]</ety> <fld>(Chem.)</fld> <def>A colorless, mobile, inflammable liquid, <chform>C2H5.NH2</chform>, very volatile and with an ammoniacal odor. It is a strong base, and is a derivative of ammonia. Called also <altname>ethyl carbamine</altname>, and <altname>amido ethane</altname>.</def>

<h1>Ethylate</h1> <Xpage=513>

<hw>Eth"yl*ate</hw> <tt>(?)</tt>. <ety>[<ets>From</ets> <er>Ethyl</er>.]</ety> <fld>(Chem.)</fld> <def>A compound derived from ethyl alcohol by the replacement of the hydroxyl hydrogen, after the manner of a hydrate; an ethyl alcoholate; <as>as, potassium <ex>ethylate</ex>, <chform>C2H5.O.K</chform></as>.</def>

<h1>Ethylene</h1> <Xpage=513>

<hw>Eth"yl*ene</hw> <tt>(?)</tt>, <tt>n.</tt> <wordforms>[<tt>From</tt> <er>Ethyl</er>.]</wordforms> <fld>(Chem.)</fld> <def>A colorless, gaseous hydrocarbon, <chform>C2H4</chform>, forming an important ingredient of illuminating gas, and also obtained by the action of concentrated sulphuric acid in alcohol. It is an unsaturated compound and combines directly with chlorine and bromine to form oily liquids (Dutch liquid), -- hence called <altname>olefiant gas</altname>. Called also <altname>ethene</altname>, <altname>elayl</altname>, and formerly, <altname>bicarbureted hydrogen</altname>.</def> <-- is effective in hastening the ripening of certain fruits. -->

<cs><col>Ethylene series</col> <fld>(Chem.)</fld>, <cd>the series if unsaturated hydrocarbons of which ethylene is the type, and represented by the general formula <chform>CnH2n</chform>.</cd></cs>

<h1>Ethylic</h1> <Xpage=513>

<hw>E*thyl"ic</hw> <tt>(?)</tt>. <fld>(Chem.)</fld> <def>Pertaining to, derived from, or containing, ethyl; <as>as, <ex>ethylic</ex> alcohol</as>.</def>