Part 5242

<hw>Hep"tarch*ist</hw> <tt>(?)</tt>, <tt>n.</tt> <def>A ruler of one division of a heptarchy.</def> <altsp>[Written also <asp>heptarch</asp>.]</altsp>

<h1>Heptarchy</h1> <Xpage=686>

<hw>Hep"tarch*y</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[<ets>Hepta-</ets> + <ets>-archy</ets>: cf. F. <ets>heptarchie</ets>.]</ety> <def>A government by seven persons; also, a country under seven rulers.</def>

<note>&hand; The word is most commonly applied to England, when it was divided into seven kingdoms; as, the Saxon <i>heptachy</i>, which consisted of Kent, the South Saxons (Sussex), West Saxons (Wessex), East Saxons (Essex), the East Angles, Mercia, and Northumberland.</note>

<h1>Heptaspermous</h1> <Xpage=686>

<hw>Hep`ta*sper"mous</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[<ets>Hepta-</ets> + Gr. <?/ a seed.]</ety> <fld>(Bot.)</fld> <def>Having seven seeds.</def>

<h1>Heptastich</h1> <Xpage=686>

<hw>Hep"ta*stich</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[<ets>Hepta-</ets> + Gr. <grk>sti`chos</grk> line, verse.]</ety> <fld>(Pros.)</fld> <def>A composition consisting of seven lines or verses.</def>

<h1>Heptateuch</h1> <Xpage=686>

<hw>Hep"ta*teuch</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[L. <ets>heptateuchos</ets>, Gr. <grk>"epta`</grk> seven + <?/ tool, book; <?/ to prepare, make, work: cf. F. <ets>heptateuque</ets>.]</ety> <def>The first seven books of the Testament.</def>

<h1>Heptavalent</h1> <Xpage=686>

<hw>Hep*tav"a*lent</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[<ets>Hepta-</ets> + L. <ets>valens</ets>, p. pr. See <er>Valence</er>.]</ety> <fld>(Chem.)</fld> <def>Having seven units of attractive force or affinity; -- said of <i>heptad</i> elements or radicals.</def>

<h1>Heptene</h1> <Xpage=686>

<hw>Hep"tene</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[Gr. <grk>"epta`</grk> seven.]</ety> <fld>(Chem.)</fld> <def>Same as <er>Heptylene</er>.</def>

<h1>Heptine</h1> <Xpage=686>

<hw>Hep"tine</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[<ets>Hept</ets>ane + <ets>-ine</ets>.]</ety> <fld>(Chem.)</fld> <def>Any one of a series of unsaturated metameric hydrocarbons, <chform>C7H12</chform>, of the acetylene series.</def>

<h1>Heptoic</h1> <Xpage=686>

<hw>Hep*to"ic</hw> <tt>(?)</tt>, <tt>a.</tt> <fld>(Chem.)</fld> <def>Pertaining to, or derived from, heptane; <as>as, <ex>heptoic</ex> acid</as>.</def>

<h1>Heptone</h1> <Xpage=686>

<hw>Hep"tone</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[Gr. <grk>"epta`</grk> seven.]</ety> <fld>(Chem.)</fld> <def>A liquid hydrocarbon, <chform>C7H10</chform>, of the valylene series.</def>

<h1>Hep tree</h1> <Xpage=686>

<hw>Hep" tree`</hw> <tt>(?)</tt>. <ety>[See <er>Hep</er>.]</ety> <def>The wild dog-rose.</def>

<h1>Heptyl</h1> <Xpage=686>

<hw>Hep"tyl</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[<ets>Hepta-</ets> + <ets>-yl</ets>.]</ety> <fld>(Chem.)</fld> <def>A compound radical, <chform>C7H15</chform>, regarded as the essential radical of heptane and a related series of compounds.</def>

<h1>Heptylene</h1> <Xpage=686>

<hw>Hep"tyl*ene</hw> <tt>(?)</tt>, <tt>n.</tt> <fld>(Chem.)</fld> <def>A colorless liquid hydrocarbon, <chform>C7H14</chform>, of the ethylene series; also, any one of its isomers. Called also <altname>heptene</altname>.</def>

<h1>Heptylic</h1> <Xpage=686>

<hw>Hep*tyl"ic</hw> <tt>(?)</tt>, <tt>a.</tt> <fld>(Chem.)</fld> <def>Pertaining to, or derived from, heptyl or heptane; <as>as, <ex>heptylic</ex> alcohol</as>. Cf. <er><OE/nanthylic</er>.</def>