Part 394

<hw><hw>Am`p\'8are"</hw> <tt>(#)</tt>, <hw>Am*pere"</hw> <tt>(#)</tt>,<hw> <tt>n.</tt> <ety>[From the name of a French electrician.]</ety> <fld>(Elec.)</fld> <def>The unit of electric current; -- defined by the International Electrical Congress in 1893 and by U. S. Statute as, one tenth of the unit of current of the C. G. S. system of electro-magnetic units, or the practical equivalent of the unvarying current which, when passed through a standard solution of nitrate of silver in water, deposits silver at the rate of 0.001118 grams per second. Called also the <altname>international amp\'8are</altname>.</def>

<h1>Amp\'8aremeter, Amperometer</h1> <Xpage=50>

<hw><hw>Am`p\'8are"me`ter</hw> <tt>(#)</tt>, <hw>Am`pe*rom"e*ter</hw> <tt>(#)</tt>,<hw> <tt>n.</tt> <ety>[<ets>Amp\'8are</ets> + <ets>meter</ets>.]</ety> <fld>(Physics)</fld> <def>An instrument for measuring the strength of an electrical current in amp\'8ares.</def>

<h1>Ampersand</h1> <Xpage=50>

<hw>Am"per*sand</hw> <tt>(#)</tt>, <tt>n.</tt> <ety>[A corruption of <ets>and</ets>, per se <ets>and</ets>, i. e., & by itself makes <ets>and</ets>.]</ety> <def>A word used to describe the character <?/, <?/, or &.</def>

<i>Halliwell.</i>

<h1>Amphi-</h1> <Xpage=50>

<hw>Am*phi-</hw>. <ety>[Gr. <?/.]</ety> <def>A prefix in words of Greek origin, signifying <i>both</i>, <i>of both kinds</i>, <i>on both sides</i>, <i>about</i>, <i>around</i>.</def>

<h1>Amphiarthrodial</h1> <Xpage=50>

<hw>Am`phi*ar*thro"di*al</hw> <tt>(#)</tt>, <tt>a.</tt> <ety>[Pref. <ets>amphi-</ets> + <ets>arthrodial</ets>.]</ety> <def>Characterized by amphiarthrosis.</def>

<h1>Amphiarthrosis</h1> <Xpage=50>

<hw>Am`phi*ar*thro"sis</hw> <tt>(#)</tt>, <tt>n.</tt> <ety>[NL., fr. Gr. <?/ + <?/ a joining, <?/ a joint.]</ety> <fld>(Anat.)</fld> <def>A form of articulation in which the bones are connected by intervening substance admitting slight motion; symphysis.</def>

<h1>Amphiaster</h1> <Xpage=50>

<hw>Am"phi*as`ter</hw> <tt>(#)</tt>, <tt>n.</tt> <ety>[NL., fr. Gr. <?/ + <?/ a star.]</ety> <fld>(Biol.)</fld> <def>The achromatic figure, formed in mitotic cell-division, consisting of two asters connected by a spindle-shaped bundle of rodlike fibers diverging from each aster, and called the <i>spindle</i>.</def>

<h1>Amphibia</h1> <Xpage=50>

<hw>Am*phib"i*a</hw> <tt>(#)</tt>, <tt>n. pl.</tt> <ety>[See <er>Amphibium</er>.]</ety> <fld>(Zo\'94l.)</fld> <def>One of the classes of vertebrates.</def>

<note>&hand; The Amphibia are distinguished by having usually no scales, by having eggs and embryos similar to those of fishes, and by undergoing a complete metamorphosis, the young having gills. There are three living orders: (1) The tailless, as the frogs <spn>(Anura)</spn>; (2) The tailed <spn>(Urodela)</spn>, as the salamanders, and the siren group <spn>(Sirenoidea)</spn>, which retain the gills of the young state (hence called <i>Perennibranchiata</i>) through the adult state, among which are the siren, proteus, etc.; (3) The C\'d2cilians, or serpentlike Amphibia <spn>(Ophiomorpha or Gymnophiona)</spn>, with minute scales and without limbs. The extinct Labyrinthodonts also belonged to this class. The term is sometimes loosely applied to both reptiles and amphibians collectively.</note>

<h1>Amphibial</h1> <Xpage=50>

<hw>Am*phib"i*al</hw> <tt>(-al)</tt>, <tt>a. & n.</tt> <def>Amphibian.</def> <mark>[R.]</mark>

<h1>Amphibian</h1> <Xpage=50>

<hw>Am*phib"i*an</hw> <tt>(-an)</tt>, <tt>a.</tt> <fld>(Zo\'94l.)</fld> <def>Of or pertaining to the Amphibia; <as>as, <ex>amphibian</ex> reptiles</as>.</def>

<h1>Amphibian</h1> <Xpage=50>

<hw>Am*phib"i*an</hw>, <tt>n.</tt> <fld>(Zo\'94l.)</fld> <def>One of the Amphibia.</def>

<h1>Amphibiological</h1> <Xpage=50>

<hw>Am*phib`i*o*log"ic*al</hw> <tt>(#)</tt>, <tt>a.</tt> <def>Pertaining to amphibiology.</def>

<h1>Amphibiology</h1> <Xpage=50>

<hw>Am*phib`i*ol"o*gy</hw> <tt>(#)</tt>, <tt>n.</tt> <ety>[Gr. <?/ amphibious + <ets>-logy</ets>: cf. F. <ets>amphibiologie</ets>.]</ety> <def>A treatise on amphibious animals; the department of natural history which treats of the Amphibia.</def>

<h1>Amphibiotica</h1> <Xpage=50>