| hem | An onomatopoetic word used as an expression of hesitation, doubt, etc. It is often a sort of voluntary half cough, loud or subdued, and would perhaps be better expressed by hm. Source: Websters Dictionary (01 Mar 1998) |
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| hemachate | <chemical> A species of agate, sprinkled with spots of red jasper. Origin: L. Haemachates; Gr. Blood + agate. Source: Websters Dictionary (01 Mar 1998) |
| hemacite | A composition made from blood, mixed with mineral or vegetable substances, used for making buttons, door knobs, etc. Origin: Gr. Aima blood. Source: Websters Dictionary (01 Mar 1998) |
| hemadromometer | <physiology> An instrument for measuring the velocity with which the blood moves in the arteries. Origin: haema- + Gr. Course. Source: Websters Dictionary (01 Mar 1998) |
| hemadromometry | <physiology> The act of measuring the velocity with which the blood circulates in the arteries; haemotachometry. Source: Websters Dictionary (01 Mar 1998) |
| hemadynamics | <physiology> The principles of dynamics in their application to the blood; that part of science which treats of the motion of the blood. Origin: haema- + dynamics. Source: Websters Dictionary (01 Mar 1998) |
| hemadynamometer | <physiology> An instrument by which the pressure of the blood in the arteries, or veins, is measured by the height to which it will raise a column of mercury. Synonym: a haemomanometer. Origin: haema- + dynamometr. Source: Websters Dictionary (01 Mar 1998) |
| hemagglutination | <haematology> Agglutination of red blood cells, often used to test for the presence of antibodies directed against red cell surface antigens or carbohydrate binding proteins or viruses in a solution. Requires that the agglutinin has at least two binding sites. (18 Nov 1997) |
| hemagglutinin | <haematology> Substance that will bring about the agglutination of erythrocytes. (18 Nov 1997) |
| hemal | Relating to the blood or blood vessels; pertaining to, situated in the region of, or on the side with, the heart and great blood vessels; opposed to neural. As applied to vertebrates, hemal is the same as ventral, the heart and great blood vessels being on the ventral, and the central nervous system on the dorsal, side of the vertebral column. <anatomy> Hemal arch, the ventral arch in a segment of the spinal skeleton, formed by vertebral processes or ribs. Origin: Gr. A"i^ma blood. Source: Websters Dictionary (01 Mar 1998) |
| hemangioblast | <haematology> Earliest mesodermal precursor of both blood and vascular endothelial cells. Described in embryonic yolk sac blood islands of birds. (18 Nov 1997) |
| hemapophysis | Origin: NL. See Haema-, and Apophysis. <anatomy> The second element in each half of a hemal arch, corresponding to the sternal part of a rib. Source: Websters Dictionary (01 Mar 1998) |
| hemastatics | <physiology> Laws relating to the equilibrium of the blood in the blood vessels. Source: Websters Dictionary (01 Mar 1998) |
| hematein | <chemistry> A reddish brown or violet crystalline substance, C16H12O6, got from haematoxylin by partial oxidation, and regarded as analogous to the phthaleins. Origin: Gr, blood. Source: Websters Dictionary (01 Mar 1998) |
| hematemesis | <symptom> The vomiting of blood. Origin: Gr. Emesis = vomiting (18 Nov 1997) |