Part 6693

<p><b>2.</b> <fld>(Alchemy)</fld> <def>Silver.</def>

<cs><col>Luna cornea</col> <fld>(Old Chem.)</fld>, <cd>horn silver, or fused silver chloride, a tough, brown, translucent mass; -- so called from its resemblance to horn.</cd> <col>Luna moth</col></mcol> <fld>(Zo\'94l.)</fld>, <cd>a very large and beautiful American moth (<spn>Actias luna</spn>). Its wings are delicate light green, with a stripe of purple along the front edge of the anterior wings, the other margins being edged with pale yellow. Each wing has a lunate spot surrounded by rings of light yellow, blue, and black. The caterpillar commonly feeds on the hickory, sassafras, and maple.</cd></cs>

<-- Fig. of Luna moth -->

<h1>Lunacy</h1> <Xpage=874>

<hw>Lu"na*cy</hw> <tt>(?)</tt>, <tt>n.</tt>; <plu>pl. <plw>Lunacies</plw> <tt>(#)</tt></plu>. <ety>[See <er>Lunatic</er>.]</ety> <p><b>1.</b> <def>Insanity or madness; properly, the kind of insanity which is broken by intervals of reason, -- formerly supposed to be influenced by the changes of the moon; any form of unsoundness of mind, except idiocy; mental derangement or alienation.</def>

<i>Brande. Burrill.</i>

<blockquote>Your kindred shuns your house As beaten hence by your strange <b>lunacy</b>. <i>Shak.</i></blockquote>

<p><b>2.</b> A morbid suspension of good sense or judgment, as through fanaticism.<pluf>

<i>Dr. H. More.</i>

<syn>Syn. -- Derangement; craziness; mania. See <er>Insanity</er>.</syn>

<hr> <page="875"> Page 875<p>

<h1>Lunar</h1> <Xpage=875>

<hw>Lu"nar</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[L. <ets>lunaris</ets>, fr. <ets>luna</ets> the moon. See <er>Luna</er>, and cf. <er>Lunary</er>.]</ety> <p><b>1.</b> <def>Of or pertaining to the moon; <as>as, <ex>lunar</ex> observations</as>.</def>

<p><b>2.</b> <def>Resembling the moon; orbed.</def>

<i>Dryden.</i>

<p><b>3.</b> <def>Measured by the revolutions of the moon; <as>as, a <ex>lunar</ex> month</as>.</def>

<p><b>4.</b> <def>Influenced by the moon, as in growth, character, or properties; <as>as, <ex>lunar</ex> herbs</as></def>.

<i>Bacon.</i>

<cs><col>Lunar caustic</col> <fld>(Med. Chem.)</fld>, <cd>silver nitrate prepared to be used as a cautery; -- so named because silver was called <i>luna<i> by the ancient alchemists.</cd> -- <col>Lunar cycle</col>. <cd>Same as <cref>Metonic cycle</cref>. See under <er>Cycle</er>.</cd> -- <col>Lunar distance</col>, <cd>the angular distance of the moon from the sun, a star, or a planet, employed for determining longitude by the <cref>lunar method</cref>.</cd> -- <col>Lunar method</col>, <cd>the method of finding a ship's longitude by comparing the local time of taking (by means of a sextant or circle) a given lunar distance, with the Greenwich time corresponding to the same distance as ascertained from a nautical almanac, the difference of these times being the longitude.</cd> -- <col>Lunar month</col>. <cd>See <er>Month</er>.</cd> -- <col>Lunar observation</col>, <cd>an observation of a lunar distance by means of a sextant or circle, with the altitudes of the bodies, and the time, for the purpose of computing the longitude.</cd> -- <col>Lunar tables</col>. <sd>(a)</sd> <fld>(Astron.)</fld> <cd>Tables of the moon's motions, arranged for computing the moon's true place at any time past or future</cd>. <sd>(b)</sd> <fld>(Navigation)</fld> <cd>Tables for correcting an observed lunar distance on account of refraction and parallax.</cd> -- <col>Lunar year</col>, <cd>the period of twelve lunar months, or 354 days, 8 hours, 48 minutes, and 34.38 seconds.</cd></cs>

<h1>Lunar</h1> <Xpage=875>

<hw>Lu"nar</hw>, <tt>n.</tt> <p><b>1.</b> <fld>(Astron.)</fld> <def>A lunar distance.</def>

<p><b>2.</b> <fld>(Anat.)</fld> <def>The middle bone of the proximal series of the carpus; -- called also <altname>semilunar</altname>, and <altname>intermedium</altname>.</def>

<h1>Lunarian</h1> <Xpage=875>

<hw>Lu*na"ri*an</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[See <er>Lunar</er>, <er>Luna</er>.]</ety> <def>An inhabitant of the moon.</def>

<h1>Lunary</h1> <Xpage=875>

<hw>Lu"na*ry</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[Cf. F. <ets>lunaire</ets>. See <er>Lunar</er>.]</ety> <def>Lunar.</def> <mark>[Obs.]</mark>

<i>Fuller.</i>

<h1>Lunary</h1> <Xpage=875>