

HEMITIS 



555 



HEMOGLOBINEMIA 



Hemitis {hem-i'-tis) [aifia, blood; inc, inflammation]. 

 A condition of the blood associated with inflammation. 



Hemitriteus {hem-it-rit-e' '-us) [f//u, half; rpeic, three]. 

 The semi-tertian form of ague. 



Hemitropous {hem-itf -ro-pus) [//«/, half; rpo-r;, a 

 turning over]. In biology, amphitropous ; half ana- 

 tropous ; applied to the plant-embryo when much 

 curved. 



Hemizonia {hem-iz-o f -ne-ah) [fyu, half; fwvtf, girdle]. 

 A genus of composite-flowered herbs and shrubs, of 

 which some 19 species are Californian ; they are 

 called tar- weeds and resin-weeds. They are generally 

 strongly fragrant, resinous plants, locally esteemed for 

 their balsamic qualities. Unof. 



Hemlock \hem'-lok). See Conium. H.-bark, a bark 

 used in the manufacture of leather. It is taken from 

 Abies canadensis of Canada and the United States, 

 and contains nearly fourteen per cent, of tannin. It 

 is said to produce a leather harder than oak-bark, but 

 which is less pliable and more pervious to water. H.- 

 extract, a strongly astringent, solid extract of hem- 

 lock-bark, q. v. It is principally employed in the 

 arts. H. Spruce. See Abies. 



Hemo-{Jeem'-o-)[aipa, blood]. A prefix denoting blood. 



Hemocelum (hem-o-se' -lum) \aifia, blood; noi?Ja, a 

 cavity]. A blood-cyst. 



Hemochromogen {hem-o-kro'- 

 mo-jeri) [atfia, blood ; xpuf*a, 

 color ; } evrjc, producing] . An 

 excretory pigment of certain 

 invertebrates. In some bee- 

 tles it has a respiratory func- 

 tion. It is the same as En- 

 terohematin and Helicornbin. 



Hemochromometer {hem-o- 

 kro-mom' -et-er) [aifia, blood ; 

 Xpuua, color ; fiirpov, meas- 

 ure]. Colorimeter; an instru- 

 ment for estimating the 

 amount of oxyhemoglobin in 

 the blood, by comparing a 

 solution of the blood with a 

 standard solution of picrocar- 

 minate of ammonia. 



Hemochyle {hem' '-o-kil)[aiua, 

 blood; X v/( k- juice]. The 

 blood-lymph of vertebrates. 



Hemocrystallin {hem-o-kris'- 

 tal-in). See Hemoglobin. 



Hemocyanin (hem-o-si'-an-iti) 

 \aiua, blood ; Kvavoq, blue], 



^isfis^KS^SPioS. (Grif- 

 fiths). A blue proteid pig- 

 ment, having a very constant 

 percentage composition. It 

 is analogous to hemoglobin, 

 but contains copper instead of iron, and forms the 

 chief constituent in the blood of many invertebrates, 

 in which it acts as the carrier of oxygen. 



lemocyne {hem'-o-sin) \_a\ua, blood ; kvuv, kwoc,, 

 dog]. The serum of dogs' blood. 



lemocyte( Item' -o-sit)[alua, blood : id roc, a cell]. One of 

 the protistan organisms found in the blood of man and 

 animals, e.g. , the parasite of malarial fever, as studied 

 by Lavaran, Celli, Machiafava, Golgi, Councilman, 

 Osier, and Pfeififer. See Parasites {Animal) Table of. 



lemocytolysis {hem-o-si-tol'-is-is\ [a\ua, blood; kitoc, 

 cell; Xbetv, to unloose]. The dissolution of blood- 

 corpuscles by means of heat. 



lemocytometer {hem-o-si-tom' '-et-er) [aiua, blood ; 

 kvtcm;, a cell ; uerpov, a measure] . A device for 

 estimating the number of corpuscles in the blood. 



The instrument of Gowers, illustrated below, and that 

 of Thoma are those most frequently employed. 



Hemocytotrypsis {hem-o-si-to-trip / -sis) \atpa, blood; 

 kvtoc , cell ; rpi^eiv, to rub]. The breaking up of 

 blood-corpuscles under strong pressure. 



Hemodiapedesis \hem-o-di-ap-ed-e / -sis) [aifia, blood; 

 dia—Tjdrioic, an oozing through]. The transudation of 

 blood through the skin. 



Hemodromograph {hem-o-dro' -mo-graf). Same as 

 Hemotachometer. 



Hemodromometer {hem-o-dro-mom' -et-er). See Hema- 

 dromometer. 



Hemodynamometer {hem-o-di-nam-om' '-et-er). See 

 Hemadynamometer . 



Hemogallol {hem-o-gal' -ol) [atfia, blood; galla, gall- 

 nut J . A proprietary substance occurring as a brownish- 

 red powder, and formed by oxidizing the hemoglobin 

 of the blood by pyrogallol. It is used in anemia in 

 doses of gr. iss-viiss. Unof. 



Hemogastric {hem-o-gas' -trik) [difia, blood; yaffrrjp, 

 stomach]. Pertaining to blood in the stomach. 



Hemogenesis {hem-o-jen' '-es-is) [aH/ia, blood ; ykveoiq, 

 generation]. The formation of blood. 



Hemogenic {liem-o-jen' -ik) \akua, blood ; /evegic, gen- 

 eration] . Pertaining to the formation of blood ; blood- 

 producing. 



Gowers' Hemocytometer. 

 A. Pipet for measuring the diluted solution. B. Capillary_tube for measuring the blood. 

 C. Cell with divisions on the floor, mounted on a slide. 



is made. E. Glass stirrer. 



D Vessel in which the dilution 

 F. Guarded spear-pointed needle. 



Hemoglobin {hem-o-glo' -bin) [difia, blood ; globus, a 

 round body]. Hematoglobin , Hemocrystallin. A 

 doubly-refractive, pleochromatic colloid or crystalline 

 matter, existing in the corpuscles of the blood, and to 

 which their red color is due. In man the amount is 

 13.77 per cent., in woman 12.59 P^ cent -> reduced 

 by pregnancy to from 9 to 12 per cent. It is an oxygen- 

 carrier or respiratory pigment. The crystals of hemo- 

 globin have a dark-red appearance with a strong 

 purple or bluish tint ; they are very soluble in water. 



Hemoglobinemia {hem-o-glo-bin-e / -me-ah) [a///«, 

 blood ; globus, a round body ; at/xa, blood]. A con- 

 dition in which the hemoglobin is dissolved out of the 

 red corpuscles, probably as the result of the destruc- 

 tion of the latter, and is held in solution in the serum. 

 The blood is " lake "-colored. It occurs in some in- 



