Part 677

HÊm`a*to*plas"tic (-pls"tk), a. [HÊmato- + -plastic.] (Physiol.) Blood formative; -- applied to a substance in early fetal life, which breaks up gradually into blood vessels.

HÊm`a*to*por"phy*rin (- pÙr"f*rn), n. [HÊmato- + Gr. porfy`ra purple.] (Physiol. Chem.) See HÊmatoin.

HÊm"a*to*sac` (-sk`), n. [HÊmato- + sac.] (Anat.) A vascular sac connected, beneath the brain, in many fishes, with the infundibulum.

HÊm"a*to*scope` (-skp`), n. A hÊmoscope.

HÊm`a*to"sin (hm`*t"sn or h*mt"*sn), n. (Physiol. Chem.) Hematin. [R.]

||HÊm`a*to"sis, n. Same as Hematosis.

||HÊm`a*to*ther"ma (hm`*t*thr"m or h`m-), n. pl. (Zoˆl.) Same as ||Hematotherma.

HÊm`a*to*ther"mal (-mal), a. Warm-blooded; homoiothermal.

HÊm`a*to*tho"rax, n. Same as Hemothorax.

HÊm`a*tox"y*lin (-tks"*ln), n. [See HÊmatoxylon.] (Chem.) The coloring principle of logwood. It is obtained as a yellow crystalline substance, C16H14O6, with a sweetish taste. Formerly called also hematin.

||HÊm`a*tox"y*lon (-ln), n. [NL., fr. Gr. a"i^ma blood + xy`lon wood.] ||(Bot.) A genus of leguminous plants containing but a single species, ||the H. Campechianum or logwood tree, native in Yucatan.

||HÊm`a*to*zo"ˆn (-t*z"n), n.; pl. HÊmatozoa (- ). [NL., fr. Gr. ||a"i^ma, a"i`matos, blood + zw^,on animal.] (Zoˆl.) A parasite ||inhabiting the blood; esp.: (a) Certain species of nematodes of the ||genus Filaria, sometimes found in the blood of man, the horse, the ||dog, etc. (b) The trematode, Bilharzia hÊmatobia, which infests the ||inhabitants of Egypt and other parts of Africa, often causing death.

HÊ"mic (h"mk or hm"k), a. Pertaining to the blood; hemal.

HÊ"min (h"mn), n. Same as Hemin.

HÊm"o- (hm"- or h"m-), prefix. See HÊma-.

HÊm"o*chrome (-krm), n. Same as HÊmachrome.

HÊm`o*chro"mo*gen (-kr"m*jn), n. [HÊmochrome + -gen.] (Physiol. Chem.) A body obtained from hemoglobin, by the action of reducing agents in the absence of oxygen.

HÊm`o*chro*mom"e*ter (- kr*mm"*tr), n. [HÊmochrome + -meter.] (Physiol. Chem.) An apparatus for measuring the amount of hemoglobin in a fluid, by comparing it with a solution of known strength and of normal color.

HÊm`o*cy"a*nin (-s"*nn), n. Same as HÊmacyanin.

||HÊm`o*cy*tol"y*sis (- s*tl"*ss), n. [NL., fr. Gr. a"i^ma blood + ||ky`tos hollow vessel + ly`ein to loosen, dissolve.] (Physiol.) See ||HÊmocytotrypsis.

HÊm`o*cy*tom"e*ter, n. See HÊmacytometer.

||HÊm`o*cy`to*tryp"sis (- s`t*trp"ss), n. [NL., fr. Gr. a"i^ma blood + ||ky`tos hollow vessel + tri`bein to rub, grind.] (Physiol.) A breaking ||up of the blood corpuscles, as by pressure, in distinction from ||solution of the corpuscles, or hÊmocytolysis.

HÊm`o*drom"o*graph, n. Same as HÊmadromograph.

HÊm`o*dro*mom"e*ter(- dr*mm"*tr),n.Same as Hemadrometer.

HÊ`mo*dy*nam"e*ter (h`m*d*nm"*tr or hm`*d-), n. Same as Hemadynamometer.

HÊ`mo*dy*nam"ics,n.Same as Hemadynamics.

HÊm`o*glo"bin, n. Same as Hemoglobin.

HÊm`o*glo`bin*om"e*ter (- m"*tr), n. [HÊmoglobin + -meter.] Same as Hemochromometer.