<B>hemisphere, </B>noun.<DL COMPACT><DD><B> 1. </B>a half sphere or globe, formed by a plane passing through the center. <DD><B> 2a. </B>half of the earth's surface. North America and South America are in the Western Hemisphere; Europe, Asia, Africa, and Australia are in the Eastern Hemisphere. All countries north of the equator are in the Northern Hemisphere; those south of the equator are in the Southern Hemisphere. <DD><B> b. </B>half of the earth, based on a division into a land hemisphere and a water hemisphere. The land hemisphere includes half of the earth with the most land. Its center lies near London, England. The other half of the earth, mostly water, makes up the water hemisphere. Its center lies near New Zealand. <DD><B> 3. </B>half of the celestial sphere, as divided by the celestial equator, the ecliptic, or the horizon. <DD><B> 4. </B>a map or model of half the terrestrial or celestial globe. <DD><B> 5. </B>(Figurative.) an area of action, life, or thought; sphere; circle. <DD><B> 6. </B>(Anatomy.) either of the two parts that together form most of the cerebrum; cerebral hemisphere. </DL>
<B>hemispherical, </B>adjective.<DL COMPACT><DD><B> 1. </B>shaped like a hemisphere. <DD><B> 2. </B>of a hemisphere. adv. <B>hemispherically.</B> </DL>
<A NAME="hemispheroid">
<B>hemispheroid, </B>noun.<DL COMPACT><DD> half of a spheroid. adj. <B>hemispheroidal.</B> </DL>
<A NAME="hemistich">
<B>hemistich, </B>noun.<DL COMPACT><DD><B> 1. </B>half a line of verse, especially the part of a verse preceding or following the main caesura. <DD><B> 2. </B>an incomplete line, or a line of verse having less than the usual length. </DL>
<A NAME="hemistichal">
<B>hemistichal, </B>adjective.<DL COMPACT><DD> having to do with a hemistich; making up a hemistich. </DL>
<A NAME="hemisystole">
<B>hemisystole, </B>noun.<DL COMPACT><DD> a contraction of only one ventricle of the heart. </DL>
<A NAME="hemiterpene">
<B>hemiterpene, </B>noun.<DL COMPACT><DD> (Chemistry.) any one of a series of isomeric hydrocarbons related to the terpenes. </DL>
<A NAME="hemitrope">
<B>hemitrope, </B>adjective, noun.<DL COMPACT><DD><I>adj. </I> having two similar parts or halves, one of which is turned half way round upon the other, as of a compound or twin crystal. <DD><I>noun </I> a hemitrope crystal. </DL>
<B>hemizygote, </B>noun.<DL COMPACT><DD> (Genetics.) an animal or plant whose chromosomes have only one of a pair of genes. </DL>
<A NAME="hemizygous">
<B>hemizygous, </B>adjective.<DL COMPACT><DD> of or having to do with a hemizygote. </DL>
<A NAME="hemline">
<B>hemline, </B>noun.<DL COMPACT><DD> the border of a garment; hem. </DL>
<A NAME="hemlock">
<B>hemlock, </B>noun.<DL COMPACT><DD><B> 1. </B>a poisonous plant with spotted stems, finely divided leaves, and small, white flowers; poison hemlock. It belongs to the parsley family and was formerly used in medicine as a powerful sedative. <DD><B> 2. </B>a poison made from it. <BR> <I>Ex. A drowsy numbness pains My sense, as though of hemlock I had drunk (Keats).</I> <DD><B> 3. </B>any one of a group of evergreen trees of the pine family. Hemlocks have short blunt needles, small cones, drooping branches, and reddish bark. Bark from hemlocks is used in tanning. <DD><B> 4. </B>its wood. </DL>
<A NAME="hemlocklooper">
<B>hemlock looper,</B><DL COMPACT><DD> a kind of measuring worm that is a pest in some North American forests. </DL>
<B>hemmer, </B>noun.<DL COMPACT><DD><B> 1. </B>a person or thing that hems. <DD><B> 2. </B>an attachment to a sewing machine for hemming. </DL>
<A NAME="hemmingmachine">
<B>hemming machine,</B><DL COMPACT><DD><B> 1. </B>a machine for hemming cloth. <DD><B> 2. </B>a machine that bends over the edges of sheet metal. </DL>
<A NAME="hemo">
<B>hemo-,</B><DL COMPACT><DD> (combining form.) blood. <BR> <I>Ex. Hemorrhage = a discharge of blood.</I> </DL>
<A NAME="hemochromatosis">
<B>hemochromatosis, </B>noun.<DL COMPACT><DD> a disease characterized by a bronzing of the skin, cirrhosis, and often diabetes, caused by the absorption of an excessive amount of iron by the bloodstream and the deposition of a hematogenous pigment, usually hemosiderin, in the liver and in other organs and tissues; bronze diabetes. </DL>
<A NAME="hemochromogen">
<B>hemochromogen, </B>noun.<DL COMPACT><DD> a protein compound in the blood, related to hemoglobin. </DL>
<A NAME="hemocoele">
<B>hemocoele, </B>noun.<DL COMPACT><DD> a cavity or space between the organs of arthropods and mollusks through which the blood circulates. </DL>
<A NAME="hemocyanin">
<B>hemocyanin, </B>noun.<DL COMPACT><DD> a respiratory pigment found in the blood of certain crustaceans, mollusks, and arachnids that corresponds to hemoglobin in higher animals. It contains copper and becomes blue when combined with oxygen. </DL>
<A NAME="hemocyte">
<B>hemocyte, </B>noun.<DL COMPACT><DD> a blood cell. </DL>
<A NAME="hemocytometer">
<B>hemocytometer, </B>noun.<DL COMPACT><DD> an instrument for counting the number of blood cells in a sample of blood. </DL>
<A NAME="hemodialysis">
<B>hemodialysis, </B>noun, pl. <B>-ses.</B><DL COMPACT><DD> dialysis of the blood performed by a hemodialyzer. </DL>
<A NAME="hemodialyzer">
<B>hemodialyzer, </B>noun.<DL COMPACT><DD> a machine that separates waste matter from the blood, used in place of the kidney; a blood dialyzer or artificial kidney. </DL>
<A NAME="hemodynamic">
<B>hemodynamic, </B>adjective.<DL COMPACT><DD> of or having to do with hemodynamics. <BR> <I>Ex. the hemodynamic effects of drugs in the bloodstream.</I> adv. <B>hemodynamically.</B> </DL>
<A NAME="hemodynamics">
<B>hemodynamics, </B>noun.<DL COMPACT><DD> hydrodynamics of the bloodstream; the study of blood pressure and flow. </DL>
<A NAME="hemoflagellate">
<B>hemoflagellate, </B>noun.<DL COMPACT><DD> a one-celled animal with a whiplike tail that lives as a parasite in the blood, such as a trypanosome. </DL>
<A NAME="hemogastric">
<B>hemogastric, </B>adjective.<DL COMPACT><DD> characterized by the pouring out of blood into the stomach. <BR> <I>Ex. hemogastric fever.</I> </DL>
<A NAME="hemoglobin">
<B>hemoglobin, </B>noun.<DL COMPACT><DD> a substance in the red corpuscles of the blood made up of iron and protein. It carries oxygen from the lungs to the tissues and some of the carbon dioxide from the tissues to the lungs. <BR> <I>Ex. Hemoglobin is the chemical that gives the red color to blood (Science News Letter).</I> <DL COMPACT><DD> Also, <B>haemoglobin.</B> </DL>
</DL>
<A NAME="hemoglobinuria">
<B>hemoglobinuria, </B>noun.<DL COMPACT><DD> the presence of hemoglobin in the urine. </DL>
<A NAME="hemoglobinuric">
<B>hemoglobinuric, </B>adjective.<DL COMPACT><DD> characterized by the presence of hemoglobin in the urine. </DL>
<A NAME="hemogram">
<B>hemogram, </B>noun.<DL COMPACT><DD> a graph or tabulation showing the results of a count and analysis of leucocytes in a blood sample. </DL>
<A NAME="hemoid">
<B>hemoid, </B>adjective.<DL COMPACT><DD> like blood. </DL>
<A NAME="hemol">
<B>hemol, </B>noun.<DL COMPACT><DD> a compound containing iron obtained from hemoglobin. It is used as a hematinic. </DL>
<A NAME="hemoleucocyte">
<B>hemoleucocyte, </B>noun.<DL COMPACT><DD> a white blood cell that circulates in the blood. </DL>
<A NAME="hemoleucocytic">
<B>hemoleucocytic, </B>adjective.<DL COMPACT><DD> having to do with hemoleucocytes. </DL>
<A NAME="hemolymph">
<B>hemolymph, </B>noun.<DL COMPACT><DD> a nutritive fluid, analogous to blood or lymph, found in the body cavity of certain invertebrates. <BR> <I>Ex. The fluid hemolymph in the insect's body cavity contains no respiratory pigment (Scientific American).</I> </DL>
<A NAME="hemolysin">
<B>hemolysin, </B>noun.<DL COMPACT><DD> a substance in the blood that destroys red blood cells and frees hemoglobin. Hemolysins may be antibodies, or they may be contained in bacterial toxins or snake venoms. </DL>
<A NAME="hemolysis">
<B>hemolysis, </B>noun.<DL COMPACT><DD> a process of dissolution of the red blood cells, with the liberation of hemoglobin. </DL>
<A NAME="hemolytic">
<B>hemolytic, </B>adjective.<DL COMPACT><DD> tending to dissolve the red blood cells. <BR> <I>Ex. hemolytic anemia.</I> </DL>
<A NAME="hemolyze">
<B>hemolyze, </B>verb, <B>-lyzed,</B> <B>-lyzing.</B><DL COMPACT><DD><I>v.i. </I> to undergo hemolysis. <DD><I>v.t. </I> to destroy (red blood cells) by hemolysis. </DL>
<B>hemophilia, </B>noun.<DL COMPACT><DD> an inherited disorder of the blood in males in which clotting does not occur normally. <BR> <I>Ex. People afflicted with hemophilia have a very slow coagulation and bleed a long time from minor wounds (A. Franklin Shull).</I> </DL>
<A NAME="hemophiliac">
<B>hemophiliac, </B>noun, adjective.<DL COMPACT><DD><I>noun </I> a person who has hemophilia; bleeder. <DD><I>adj. </I> <B>=hemophilic.</B> </DL>
<A NAME="hemophilic">
<B>hemophilic, </B>adjective.<DL COMPACT><DD><B> 1. </B>of or having hemophilia. <DD><B> 2. </B>flourishing in blood or a medium containing blood. <BR> <I>Ex. hemophilic bacteria.</I> </DL>
<B>hemoprotein, </B>noun.<DL COMPACT><DD> (Biochemistry.) any one of a group of protein substances, including hemoglobin, cytochromes, peroxidase, and catalase, which absorb oxygen and are pigments important in the spectral analysis of cells. </DL>
<A NAME="hemoptysis">
<B>hemoptysis, </B>noun.<DL COMPACT><DD> the coughing up of blood or bloody mucus, usually from the lungs or bronchi. </DL>
