Part 5468

<hw>Hy`dro*ba*rom"e*ter</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[<ets>Hydro-</ets>, 1 + <ets>barometer</ets>.]</ety> <def>An instrument for determining the depth of the sea water by its pressure.</def>

<h1>Hydrobilirubin</h1> <Xpage=716>

<hw>Hy`dro*bil`i*ru"bin</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[<ets>Hydro-</ets>, 2 + <ets>bilirubin</ets>.]</ety> <fld>(Physiol. Chem.)</fld> <def>A body formed from bilirubin, identical with urobilin.</def>

<h1>Hydrobranchiata</h1> <Xpage=716>

<hw>Hy`dro*bran`chi*a"ta</hw> <tt>(?)</tt>, <tt>n. pl.</tt> <ety>[NL., fr. Gr. <grk>"y`dwr</grk> water + <?/ gills.]</ety> <fld>(Zo\'94l.)</fld> <def>An extensive artificial division of gastropod mollusks, including those that breathe by gills, as contrasted with the Pulmonifera.</def> -- <wordforms><wf>Hy`dro*bran"chi*ate</wf> <tt>(#)</tt>, <tt>a.</tt></wordforms>

<h1>Hydrobromate</h1> <Xpage=716>

<hw>Hy`dro*bro"mate</hw> <tt>(?)</tt>, <tt>n.</tt> <fld>(Chem.)</fld> <def>Same as <er>Hydrobromide</er>.</def>

<h1>Hydrobromic</h1> <Xpage=716>

<hw>Hy`dro*bro"mic</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[<ets>Hydro-</ets>, 2 + <ets>bromic</ets>.]</ety> <fld>(Chem.)</fld> <def>Composed of hydrogen and bromine; <as>as, <ex>hydrobromic</ex> acid</as>.</def>

<cs><col>Hydrobromic acid</col> <fld>(Chem.)</fld>, <cd>a colorless, pungent, corrosive gas, <chform>HBr</chform>, usually collected as a solution in water. It resembles hydrochloric acid, but is weaker and less stable. Called also <altname>hydrogen bromide</altname>.</cd></cs>

<h1>Hydrobromide</h1> <Xpage=716>

<hw>Hy`dro*bro"mide</hw> <tt>(?)</tt>, <tt>n.</tt> <fld>(Chem.)</fld> <def>A compound of hydrobromic acid with a base; -- distinguished from a <i>bromide</i>, in which only the bromine unites with the base.</def><-- analogous to hydrochloride or hydriodide -->

<h1>Hydrocarbon</h1> <Xpage=716>

<hw>Hy`dro*car"bon</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[<ets>Hydro-</ets>, 2 + <ets>carbon</ets>.]</ety> <fld>(Chem.)</fld> <def>A compound containing only hydrogen and carbon, as methane, benzene, etc.; also, by extension, any of their derivatives.</def>

<cs><mcol><col>Hydrocarbon burner</col>, <col>furnace</col>, <col>stove</col></mcol>, <cd>a burner, furnace, or stove with which liquid fuel, as petroleum, is used.</cd></cs>

<h1>Hydrocarbonaceous</h1> <Xpage=716>

<hw>Hy`dro*car`bo*na"ceous</hw> <tt>(?)</tt>, <tt>a.</tt> <def>Of the nature, or containing, hydrocarbons.</def>

<h1>Hydrocarbonate</h1> <Xpage=716>

<hw>Hy`dro*car"bon*ate</hw> <tt>(?)</tt>, <tt>n.</tt> <sd>(a)</sd> <fld>(Old Chem.)</fld> <def>A hydrocarbon.</def> <mark>[Obs.]</mark> <sd>(b)</sd> <fld>(Chem.)</fld> <def>A hydrous carbonate, as malachite.</def>

<h1>Hydrocarbostyril</h1> <Xpage=716>

<hw>Hy`dro*car`bo*sty"ril</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[<ets>Hydro-</ets>, 2 + <ets>carbostyril</ets>.]</ety> <fld>(Chem.)</fld> <def>A white, crystalline, nitrogenous hydrocarbon, <chform>C9H9NO</chform>, obtained from certain derivatives of cinnamic acid and closely related to quinoline and carbostyril.</def>

<h1>Hydrocarburet</h1> <Xpage=716>

<hw>Hy`dro*car"bu*ret</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[<ets>Hydro-</ets>, 2 + <ets>carburet</ets>.]</ety> <fld>(Chem.)</fld> <def>Carbureted hydrogen; also, a hydrocarbon.</def> <mark>[Obs.]</mark>

<h1>Hydrocaulus</h1> <Xpage=716>

<hw>Hy`dro*cau"lus</hw> <tt>(?)</tt>, <tt>n.</tt>; <plu>pl. <plw>Hydrocauli</plw> <tt>(#)</tt></plu>. <ety>[NL., fr. Gr. <grk>"y`dwr</grk> water + <?/ a stalk.]</ety> <fld>(Zo\'94l.)</fld> <def>The hollow stem of a hydroid, either simple or branched. See <i>Illust</i>. of <er>Gymnoblastea</er> and <er>Hydroidea</er>.</def>

<h1>Hydrocele</h1> <Xpage=716>

<hw>Hy`dro*cele</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[L., fr. Gr. <?/; <grk>"y`dwr</grk> water + <?/ tumor.]</ety> <fld>(Med.)</fld> <def>A collection of serous fluid in the areolar texture of the scrotum or in the coverings, especially in the serous sac, investing the testicle or the spermatic cord; dropsy of the testicle.</def>

<h1>Hydrocephalic</h1> <Xpage=716>