Part 5188

<p><b>7.</b> <def>Utmost violence; rage; vehemence; <as>as, the <ex>heat</ex> of battle or party</as>.</def> "The <i>heat</i> of their division."

<i>Shak.</i>

<p><b>8.</b> <def>Agitation of mind; inflammation or excitement; exasperation.</def> "The <i>head</i> and hurry of his rage."

<i>South.</i>

<p><b>9.</b> <def>Animation, as in discourse; ardor; fervency.</def>

<blockquote>With all the strength and <b>heat</b> of eloquence. <i>Addison.</i></blockquote>

<p><b>10.</b> <def>Sexual excitement in animals.</def>

<p><b>11.</b> <def>Fermentation.</def>

<cs><mcol><col>Animal heat</col>, <col>Blood heat</col>, <col>Capacity for heat</col></mcol>, <cd>etc. See under <er>Animal</er>, <er>Blood</er>, etc.</cd> -- <col>Atomic heat</col> (<fld>Chem.</fld>), <cd>the product obtained by multiplying the atomic weight of any element by its specific heat. The atomic heat of all solid elements is nearly a constant, the mean value being 6.4.</cd> -- <col>Dynamical theory of heat</col>, <cd>that theory of heat which assumes it to be, not a peculiar kind of matter, but a peculiar motion of the ultimate particles of matter.</cd> <col>Heat engine</col></mcol>, <cd>any apparatus by which a heated substance, as a heated fluid, is made to perform work by giving motion to mechanism, as a hot-air engine, or a steam engine.</cd> -- <col>Heat producers</col>. <fld>(Physiol.)</fld> <cd>See under <er>Food</er>.</cd> -- <col>Heat rays</col>, <cd>a term formerly applied to the rays near the red end of the spectrum, whether within or beyond the visible spectrum.</cd> -- <col>Heat weight</col> <fld>(Mech.)</fld>, <cd>the product of any quantity of heat by the mechanical equivalent of heat divided by the absolute temperature; -- called also <altname>thermodynamic function</altname>, and <altname>entropy</altname>.</cd> -- <col>Mechanical equivalent of heat</col>. <cd>See under <er>Equivalent</er>.</cd> -- <col>Specific heat of a substance</col><cd> (at any temperature), the number of units of heat required to raise the temperature of a unit mass of the substance at that temperature one degree.</cd> -- <col>Unit of heat</col>, <cd>the quantity of heat required to raise, by one degree, the temperature of a unit mass of water, initially at a certain standard temperature. The temperature usually employed is that of 0&deg; Centigrade, or 32&deg; Fahrenheit.</cd></cs>

<h1>Heat</h1> <Xpage=679>

<hw>Heat</hw> <tt>(?)</tt>, <tt>v. t.</tt> <wordforms>[<tt>imp. & p. p.</tt> <er>Heated</er>; <tt>p. pr. & vb. n.</tt> <er>Heating</er>.]</wordforms> <ety>[OE. <ets>heten</ets>, AS. <ets>h<?/tan</ets>, fr. <ets>h\'bet</ets> hot. See <er>Hot</er>.]</ety> <p><b>1.</b> <def>To make hot; to communicate heat to, or cause to grow warm; <as>as, to <ex>heat</ex> an oven or furnace, an iron, or the like</as>.</def>

<blockquote><b>Heat</b> me these irons hot. <i>Shak.</i>

<p><b>2.</b> <def>To excite or make hot by action or emotion; to make feverish.</def>

<blockquote>Pray, walk softly; do not <b>heat</b> your blood. <i>Shak.</i></blockquote>

<p><b>3.</b> <def>To excite ardor in; to rouse to action; to excite to excess; to inflame, as the passions.</def>

<blockquote>A noble emulation <b>heats</b> your breast. <i>Dryden.</i></blockquote>

<h1>Heat</h1> <Xpage=679>

<hw>Heat</hw>, <tt>v. i.</tt> <p><b>1.</b> <def>To grow warm or not by the action of fire or friction, etc., or the communication of heat; <as>as, the iron or the water <ex>heats</ex> slow<?/y</as>.</def>

<p><b>2.</b> <def>To grow warm or hot by fermentation, or the development of heat by chemical action; <as>as, green hay <ex>heats</ex> in a mow, and manure in the dunghill</as>.</def>

<h1>Heat</h1> <Xpage=679>

<hw>Heat</hw> <tt>(?)</tt>, <ety><tt>imp. & p. p.</tt> of <er>Heat</er>.</ety> <def>Heated; <as>as, the iron though <ex>heat</ex> red-hot</as></def>. <mark>[Obs. or Archaic.]</mark>

<i>Shak.</i>

<h1>Heater</h1> <Xpage=679>

<hw>Heat"er</hw> <tt>(?)</tt>, <tt>n.</tt> <p><b>1.</b> <def>One who, or that which, heats.</def>

<p><b>2.</b> <def>Any contrivance or implement, as a furnace, stove, or other heated body or vessel, etc., used to impart heat to something, or to contain something to be heated.</def>

<cs><col>Feed heater</col>. <cd>See under <er>Feed</er>.</cd></cs>

<h1>Heath</h1> <Xpage=679>

<hw>Heath</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[OE. <ets>heth</ets> waste land, the plant heath, AS. <ets>h<?/<?/</ets>; akin to D. & G. <ets>heide</ets>, Icel. <ets>hei<?/r</ets> waste land, Dan. <ets>hede</ets>, Sw. <ets>hed</ets>, Goth. <ets>haipi</ets> field, L. <ets>bucetum</ets> a cow pasture; cf. W. <ets>coed</ets> a wood, Skr. <ets>ksh<?/tra</ets> field. &root;20.]</ety> <p><b>1.</b> <fld>(Bot.)</fld> <sd>(a)</sd> <def>A low shrub (<spn>Erica, &or; Calluna, vulgaris</spn>), with minute evergreen leaves, and handsome clusters of pink flowers. It is used in Great Britain for brooms, thatch, beds for the poor, and for heating ovens. It is also called <altname>heather</altname>, and <altname>ling</altname>.</def> <sd>(b)</sd> <def>Also, any species of the genus <spn>Erica</spn>, of which several are European, and many more are South African, some of great beauty. See <i>Illust</i>. of <er>Heather</er>.</def>