Part 1951

<hw>Cir`ri*pe"di*a</hw> <tt>(?)</tt>, <tt>n. pl.</tt> <ety>[NL., fr. L. <ets>cirrus</ets> curl + <ets>pes</ets>, <ets>pedis</ets>, foot.]</ety> <fld>(Zo\'94l.)</fld> <def>An order of Crustacea including the barnacles. When adult, they have a calcareous shell composed of several pieces. From the opening of the shell the animal throws out a group of curved legs, looking like a delicate curl, whence the name of the group. See <er>Anatifa</er>.</def>

<h1>Cirrobranchiata</h1> <Xpage=259>

<hw>Cir`ro*bran`chi*a"ta</hw> <tt>(?)</tt>, <tt>n. pl.</tt> <ety>[NL., fr. E. <ets>cirrus</ets> + L. <ets>branchiae</ets> gills.]</ety> <fld>(Zo\'94l.)</fld> <def>A division of Mollusca having slender, cirriform appendages near the mouth; the Scaphopoda.</def>

<h1>Cirro-cumulus</h1> <Xpage=259>

<hw>Cir`ro-cu"mu*lus</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[<ets>Cirrus</ets> + <ets>cumulus</ets>.]</ety> <fld>(Meteor.)</fld> <def>See under <er>Cloud</er>.</def>

<h1>Cirrose</h1> <Xpage=259>

<hw>Cir"rose</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[See <er>Cirrus</er>.]</ety> <fld>(Bot.)</fld> <sd>(a)</sd> <def>Bearing a tendril or tendrils; <as>as, a <ex>cirrose</ex> leaf</as>.</def> <sd>(b)</sd> <def>Resembling a tendril or cirrus.</def> <altsp>[Spelt also <asp>cirrhose</asp>.]</altsp>

<h1>Cirrostomi</h1> <Xpage=259>

<hw>Cir`ros"to*mi</hw> <tt>(?)</tt>, <tt>n. pl.</tt> <ety>[NL., fr. E. <ets>cirrus</ets> + Gr. <?/ mouth.]</ety> <fld>(Zo\'94l.)</fld> <def>The lowest group of vertebrates; -- so called from the cirri around the mouth; the Leptocardia. See <er>Amphioxus</er>.</def>

<h1>Cirro-stratus</h1> <Xpage=259>

<hw>Cir`ro-stra"tus</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[<ets>Cirrus</ets> + <ets>stratus</ets>.]</ety> <fld>(Meteor.)</fld> <def>See under <er>Cloud</er>.</def>

<h1>Cirrous</h1> <Xpage=259>

<hw>Cir"rous</hw> <tt>(?)</tt>, <tt>a.</tt> <p><b>1.</b> <fld>(Bot.)</fld> <def>Cirrose.</def>

<p><b>2.</b> <fld>(Zo\'94l.)</fld> <def>Tufted; -- said of certain feathers of birds.</def>

<h1>Cirrus</h1> <Xpage=259>

<hw>Cir"rus</hw> <tt>(?)</tt>, <tt>n.</tt>; <plu>pl. <plw>Cirri</plw> <tt>(#)</tt>.</plu> <ety>[L., lock, curl, ringlet.]</ety> <altsp>[Also written <asp>cirrhus</asp>.]</altsp>

<p><b>1.</b> <fld>(Bot.)</fld> <def>A tendril or clasper.</def>

<p><b>2.</b> <fld>(Zo\'94l.)</fld> <sd>(a)</sd> <def>A soft tactile appendage of the mantle of many Mollusca, and of the parapodia of Annelida. Those near the head of annelids are <i>Tentacular cirri</i>; those of the last segment are <i>caudal cirri</i>.</def> <sd>(b)</sd> <def>The jointed, leglike organs of Cirripedia. See <er>Annelida</er>, and <er>Polych\'91ta</er>.</def>

<note>&hand; In some of the inferior animals the <i>cirri</i> aid in locomotion; in others they are used in feeding; in the Annelida they are mostly organs of touch. Some <i>cirri</i> are branchial in function.</note>

<p><b>3.</b> <fld>(Zo\'94l.)</fld> <def>The external male organ of trematodes and some other worms, and of certain Mollusca.</def>

<p><b>4.</b> <fld>(Meteor.)</fld> <def>See under <er>Cloud</er>.</def>

<h1>Cirsocele</h1> <Xpage=259>

<hw>Cir"so*cele</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[Gr. <?/ a dilated vein + <?/ tumor.]</ety> <fld>(Med.)</fld> <def>The varicose dilatation of the spermatic vein.</def>

<h1>Cirsoid</h1> <Xpage=259>

<hw>Cir"soid</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[Gr. <?/ a dilated vein + <ets>-oid</ets>.]</ety> <fld>(Med.)</fld> <def>Varicose.</def>

<cs><col>Cirsoid aneurism</col>, <cd>a disease of an artery in which it becomes dilated and elongated, like a varicose vein.</cd></cs>

<h1>Cirsotomy</h1> <Xpage=259>

<hw>Cir*sot"o*my</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[Gr. <?/ a dilated vein + <?/ to cut.]</ety> <fld>(Surg.)</fld> <def>Any operation for the removal of varices by incision.</def>