Part 5227

<h1>Hematoidin</h1> <Xpage=684>

<hw>Hem`a*toid"in</hw> <tt>(?)</tt>, <tt>n.</tt> <fld>(Physiol. Chem.)</fld> <def>A crystalline or amorphous pigment, free from iron, formed from hematin in old blood stains, and in old hemorrhages in the body. It resembles bilirubin. When present in the corpora lutea it is called <altname>h\'91molutein</altname>.</def>

<h1>Hematology</h1> <Xpage=684>

<hw>Hem`a*tol"o*gy</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[<ets>Hemato-</ets> + <ets>-logy</ets>.]</ety> <def>The science which treats of the blood.</def>

<h1>Hematoma</h1> <Xpage=684>

<hw>Hem`a*to"ma</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[NL. See <er>Hema-</er>, and <er>-oma</er>.]</ety> <fld>(Med.)</fld> <def>A circumscribed swelling produced by an effusion of blood beneath the skin.</def>

<h1>Hematophilia</h1> <Xpage=684>

<hw>Hem`a*to*phil"i*a</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[NL., fr. Gr. <grk>a"i^ma</grk>, <grk>a"i`matos</grk>, blood + <?/ to love.]</ety> <fld>(Med.)</fld> <def>A condition characterized by a tendency to profuse and uncontrollable hemorrhage from the slightest wounds.</def><-- = hemophilia -->

<h1>Hematosin</h1> <Xpage=684>

<hw>Hem`a*to"sin</hw> <tt>(?)</tt>, <tt>n.</tt> <fld>(Physiol. Chem.)</fld> <def>The hematin of blood.</def> <mark>[R.]</mark>

<h1>Hematosis</h1> <Xpage=684>

<hw>Hem`a*to"sis</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[NL., fr. Gr. <grk>a"ima`twsis</grk>.]</ety> <fld>(Physiol.)</fld> <sd>(a)</sd> <def>Sanguification; the conversion of chyle into blood.</def> <sd>(b)</sd> <def>The arterialization of the blood in the lungs; the formation of blood in general; h\'91matogenesis.</def>

<h1>Hematotherma</h1> <Xpage=684>

<hw>Hem`a*to*ther"ma</hw> <tt>(?)</tt>, <tt>n. pl.</tt> <ety>[NL., from Gr. <grk>a"i^ma</grk>, <grk>a"i`matos</grk>, blood + <grk>thermo`s</grk> warm.]</ety> <fld>(Zo\'94l.)</fld> <def>The warm-blooded vertebrates, comprising the mammals and birds; -- the antithesis to <i>hematocrya</i>.</def>

<h1>Hematothermal</h1> <Xpage=684>

<hw>Hem"a*to*ther"mal</hw> <tt>(?)</tt>, <tt>a.</tt> <def>Warm-blooded.</def>

<h1>Hematoxylin</h1> <Xpage=684>

<hw>Hem`a*tox"y*lin</hw> <tt>(?)</tt>, <tt>n.</tt> <def>H\'91matoxylin.</def>

<h1>Hematuria</h1> <Xpage=684>

<hw>Hem`a*tu"ri*a</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[NL. See <er>Hema-</er>, and <er>Urine</er>.]</ety> <fld>(Med.)</fld> <def>Passage of urine mingled with blood.</def>

<h1>Hemautography</h1> <Xpage=684>

<hw>Hem`au*tog"ra*phy</hw> <tt>(?)</tt>, <tt>n.</tt> <fld>(Physiol.)</fld> <def>The obtaining of a curve similar to a pulse curve or sphygmogram by allowing the blood from a divided artery to strike against a piece of paper.</def>

<h1>Hemelytron &or;, Hemelytrum</h1> <Xpage=684>

<hw><hw>Hem*el"y*tron</hw> <tt>(? &or; ?)</tt>, <hw>Hem*el"y*trum</hw> <tt>(-tr&ucr;m cf. <er>Elytron</er>, 277)</tt>,<hw>, <tt>n.</tt>; <plu>pl. <plw>Hemelytra</plw> <tt>(<?/)</tt>.</plu> <ety>[NL. See <er>Hemi</er>, and <er>Elytron</er>.]</ety> <fld>(Zo\'94l.)</fld> <def>One of the partially thickened anterior wings of certain insects, as of many Hemiptera, the earwigs, etc.</def>

<h1>Hemeralopia</h1> <Xpage=684>

<hw>Hem`e*ra*lo"pi*a</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[NL., fr. Gr. <?/, the opposite of <?/; <?/ day + <?/ of <?/. See <er>Nyctalopia</er>.]</ety> <fld>(Med.)</fld> <def>A disease of the eyes, in consequence of which a person can see clearly or without pain only by daylight or a strong artificial light; day sight.</def>

<note>&hand; Some writers (as Quain) use the word in the opposite sense, <it>i. e.</it>, day blindness. See <er>Nyctalopia</er>.</note>

<h1>Hemerobian</h1> <Xpage=684>