Part 4891

<cs><col>Gong metal</col>, <cd>an alloy (78 parts of copper, 22 of tin), from which Oriental gongs are made.</cd></cs>

<h1>Goniatite</h1> <Xpage=638>

<hw>Go"ni*a*tite</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[Gr. <?/ angle.]</ety> <fld>(Paleon.)</fld> <def>One of an extinct genus of fossil cephalopods, allied to the Ammonites. The earliest forms are found in the Devonian formation, the latest, in the Triassic.</def>

<h1>Gonidial</h1> <Xpage=638>

<hw>Go*nid"i*al</hw> <tt>(?)</tt>, <tt>a.</tt> <fld>(Bot.)</fld> <def>Pertaining to, or containing, gonidia.</def>

<h1>Gonidial</h1> <Xpage=638>

<hw>Go*nid"i*al</hw>, <tt>a.</tt> <fld>(Zo\'94l.)</fld> <def>Of or pertaining to the angles of the mouth; <as>as, a <ex>gonidial</ex> groove of an actinian</as>.</def>

<h1>Gonidium</h1> <Xpage=638>

<hw>Go*nid"i*um</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[NL., fr. Gr. <?/, dim. of <?/ angle.]</ety> <fld>(Zool.)</fld> <def>A special groove or furrow at one or both angles of the mouth of many Anthozoa.</def>

<h1>Gonidium</h1> <Xpage=638>

<hw>Go*nid"i*um</hw>, <tt>n.</tt>; <plu>pl. <plw>Gonidia</plw> <tt>(#)</tt></plu>. <ety>[NL., fr. Gr. <?/ that which generates.]</ety> <fld>(Bot.)</fld> <def>A component cell of the yellowish green layer in certain lichens.</def>

<h1>Gonimia</h1> <Xpage=638>

<hw>Go*nim"i*a</hw> <tt>(?)</tt>, <tt>n. pl.</tt> <ety>[NL., fr. Gr. <?/ productive, fr. <?/ that which generates.]</ety> <fld>(Bot.)</fld> <def>Bluish green granules which occur in certain lichens, as <spn>Collema</spn>, <spn>Peltigera</spn>, etc., and which replace the more usual gonidia.</def>

<h1>Gonimous</h1> <Xpage=638>

<hw>Gon"i*mous</hw> <tt>(?)</tt>, <tt>a.</tt> <fld>(Bot.)</fld> <def>Pertaining to, or containing, gonidia or gonimia, as that part of a lichen which contains the green or chlorophyll-bearing cells.</def>

<h1>Goniometer</h1> <Xpage=638>

<hw>Go`ni*om"e*ter</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[Gr. <?/ angle + <ets>-meter</ets>: cf. F. <ets>goniom\'8atre</ets>.]</ety> <def>An instrument for measuring angles, especially the angles of crystals, or the inclination of planes.</def>

<cs><mcol><col>Contact, &or; Hand</col>, <col>goniometer</col></mcol>, <cd>a goniometer having two movable arms (<it>ab<it>, <it>cd<it>), between which (at <it>ab<it>) the faces of the crystals are placed. These arms turn about a fixed point, which is the center of the graduated circle or semicircle upon which the angle is read off.</cd> -- <col>Reflecting goniometer</col>, <cd>an instrument for measuring the angles of crystals by determining through what angular space the crystal must be turned so that two rays reflected from two surfaces successively shall have the same direction; -- called also <altname>Wollaston's goniometer</altname>, from the inventor.</cd></cs>

<mhw><h1>Goniometric, Goniometrical</h1> <Xpage=638>

<hw>Go`ni*o*met"ric</hw> <tt>(?)</tt>, <hw>Go`ni*o*met"ric*al</hw> <tt>(<?/)</tt></mhw>, <tt>a.</tt> <def>Pertaining to, or determined by means of, a goniometer; trigonometric.</def>

<h1>Goniometry</h1> <Xpage=638>

<hw>Go`ni*om"e*try</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[Cf. F. <ets>goniom\'82trie</ets>.]</ety> <fld>(Math.)</fld> <def>The art of measuring angles; trigonometry.</def>

<h1>Gonoblastid</h1> <Xpage=638>

<hw>Gon`o*blas"tid</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[See <er>Gonoblastidium</er>.]</ety> <fld>(Zo\'94l.)</fld> <def>A reproductive bud of a hydroid; a simple gonophore.</def>

<h1>Gonoblastidium</h1> <Xpage=638>

<hw>Gon`o*blas*tid"i*um</hw> <tt>(?)</tt>, <tt>n.</tt>; <plu>pl. <plw>Gonoblastidia</plw> <tt>(#)</tt></plu>. <ety>[NL., fr. Gr. <?/ offspring + <?/ to bud.]</ety> <fld>(Zo\'94l.)</fld> <def>A blastostyle.</def>

<h1>Gonocalyx</h1> <Xpage=638>

<hw>Gon`o*ca"lyx</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[Gr. <?/ offspring + E. <ets>calyx</ets>,]</ety> <fld>(Zo\'94l.)</fld> <def>The bell of a sessile gonozooid.</def>