Part 136

<h1>Actinaria</h1> <Xpage=18>

<hw>Ac`ti*na"ri*a</hw> <tt>(#)</tt>, <tt>n. pl.</tt> <ety>[NL., from Gr. <?/, <?/, ray.]</ety> <fld>(Zo\'94l.)</fld> <def>A large division of Anthozoa, including those which have simple tentacles and do not form stony corals. Sometimes, in a wider sense, applied to all the Anthozoa, expert the Alcyonaria, whether forming corals or not.</def>

<h1>Acting</h1> <Xpage=18>

<hw>Act"ing</hw> <tt>(#)</tt>, <tt>a.</tt> <p><b>1.</b> <def>Operating in any way.</def>

<p><b>2.</b> <def>Doing duty for another; officiating; <as>as, an superintendent</as>.</def>

<h1>Actinia</h1> <Xpage=18>

<hw>Ac*tin"i*a</hw> <tt>(#)</tt>, <tt>n.</tt>; <plu>pl. L. <plw>Actini\'91</plw> <tt>(#)</tt>, E. <plw>Actinias</plw> <tt>(#)</tt></plu>. <ety>[Latinized fr. Gr. <?/, <?/, ray.]</ety> <fld>(Zo\'94l.)</fld> <sd>(a)</sd> <def>An animal of the class Anthozoa, and family <spn>Actinid\'91</spn>. From a resemblance to flowers in form and color, they are often called <altname>animal flowers</altname> and <altname>sea anemones</altname>. [See <er>Polyp</er>.].</def> <sd>(b)</sd> <def>A genus in the family <spn>Actinid\'91</spn>.</def>

<h1>Actinic</h1> <Xpage=18>

<hw>Ac*tin"ic</hw> <tt>(#)</tt>, <tt>a.</tt> <def>Of or pertaining to actinism; <as>as, <ex>actinic</ex> rays</as>.</def>

<h1>Actiniform</h1> <Xpage=18>

<hw>Ac*tin"i*form</hw> <tt>(#)</tt>, <tt>a.</tt> <ety>[Gr. <?/, <?/, ray + <ets>-form</ets>.]</ety> <def>Having a radiated form, like a sea anemone.</def>

<h1>Actinism</h1> <Xpage=18>

<hw>Ac"tin*ism</hw> <tt>(#)</tt>, <tt>n.</tt> <ety>[Gr. <?/, <?/ ray.]</ety> <def>The property of radiant energy (found chiefly in solar or electric light) by which chemical changes are produced, as in photography.</def>

<h1>Actinium</h1> <Xpage=18>

<hw>Ac*tin"i*um</hw> <tt>(#)</tt>, <tt>n.</tt> <ety>[Gr. <?/, <?/, ray.]</ety> <fld>(Chem.)</fld> <def>A supposed metal, said by Phipson to be contained in commercial zinc; -- so called because certain of its compounds are darkened by exposure to light.</def>

<h1>Actino-chemistry</h1> <Xpage=18>

<hw>Ac`ti*no-chem"is*try</hw> <tt>(#)</tt>, <tt>n.</tt> <def>Chemistry in its relations to actinism.</def>

<i>Draper.</i>

<h1>Actinograph</h1> <Xpage=18>

<hw>Ac*tin"o*graph</hw> <tt>(#)</tt>, <tt>n.</tt> <ety>[Gr. <?/, <?/, ray + <ets>-graph</ets>.]</ety> <def>An instrument for measuring and recording the variations in the <i>actinic</i> or chemical force of rays of light.</def>

<i>Nichol.</i>

<h1>Actinoid</h1> <Xpage=18>

<hw>Ac"tin*oid</hw> <tt>(#)</tt>, <tt>a.</tt> <ety>[Gr. <?/, <?/, ray + <ets>-oid</ets>.]</ety> <def>Having the form of rays; radiated, as an actinia.</def>

<h1>Actinolite</h1> <Xpage=18>

<hw>Ac*tin"o*lite</hw> <tt>(#)</tt>, <tt>n.</tt> <ety>[Gr. <?/, <?/, ray + <ets>-lite</ets>.]</ety> <fld>(Min.)</fld> <def>A bright green variety of amphibole occurring usually in fibrous or columnar masses.</def>

<h1>Actinolitic</h1> <Xpage=18>

<hw>Ac`tin*o*lit"ic</hw> <tt>(#)</tt>, <tt>a.</tt> <fld>(Min.)</fld> <def>Of the nature of, or containing, actinolite.</def>

<h1>Actinology</h1> <Xpage=18>