| haemoglobinometer | Same as Hemochromometer. Origin: Haemoglobin. Source: Websters Dictionary (01 Mar 1998) |
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| haemoglobinometry | Measurement of haemoglobin concentration in blood. (12 Dec 1998) |
| haemoglobinopathy | <disease, haematology> Disorder due to abnormalities in the haemoglobin molecule, the best known being sickle cell anaemia in which there is a single amino acid substitution (valine for glutamate) in position 6 of the beta chain. In other cases one of the globin chains is synthesised at a slower rate, despite being normal in structure. See: thalassaemia. Origin: Gr. Pathos = disease (18 Nov 1997) |
| haemoglobinopepsia | Synonym: haemoglobinolysis. Origin: haemoglobin + G. Pepsis, digestion (05 Mar 2000) |
| haemoglobinophilic | Denoting certain microorganisms that cannot be cultured except in the presence of haemoglobin. Origin: haemoglobin + G. Phileo, to love (05 Mar 2000) |
| haemoglobins, abnormal | Haemoglobins altered in their genetically determined molecular structure, resulting in a characteristic complex of vlinival and laboratory abnormalities. The specific features of the abnormal haemoglobins are related to variation of the composite globin polypeptide chains. (12 Dec 1998) |
| haemoglobinuria | Haemoglobin in the urine. (12 Dec 1998) |
| haemoglobinuria, paroxysmal | Disorder characterised by intravascular haemolysis and haemoglobinuria. Some cases occur on exposure to cold and are due to the presence of an autohemolysin in the serum. Other cases are more marked during or immediately after sleep and are considered to be due to an acquired intracorpuscular defect. (12 Dec 1998) |
| haemoglobinuric | Relating to or marked by haemoglobinuria. (05 Mar 2000) |
| haemoglobinuric fever | A condition, now uncommon, resulting from Plasmodium falciparum infection (malignant tertian malaria with severe haemolysis); frequently seen in Caucasians after interrupted treatment with quinine. Synonym: blackwater fever, haemoglobinuric fever, West African fever. (05 Mar 2000) |
| haemoglobinuric nephrosis | Acute oliguric renal failure associated with haemoglobinuria, due to massive intravascular haemolysis, e.g., following an incompatible blood transfusion; the kidneys show the morphologic changes of hypoxic nephrosis. (05 Mar 2000) |
| haemogram | A complete detailed record of the findings in a thorough examination of the blood, especially with reference to the numbers, proportions, and morphologic features of the formed elements. Origin: haemo-+ G. Gramma, a drawing (05 Mar 2000) |
| Haemogregarina | A sporozoan coccidian genus (order Eucoccidiida, family Haemogregarinidae) that parasitises the blood cells of cold-blooded animals and the digestive system of invertebrate primary hosts in an obligatory two-host cycle. Origin: G. Haima, blood, + L. Grex, a flock (05 Mar 2000) |
| haemohistioblast | A primitive mesenchymal cell believed to be capable of developing into all types of blood cells, including monocytes, and into histiocytes. Synonym: Ferrata's cell, haematohistioblast. Origin: haemo-+ G. Histion, web, + blastos, germ (05 Mar 2000) |
| haemolamella | <haematology> A discoid cell (3m diameter) found in large numbers in blood, important for blood coagulation and for haemostasis by repairing breaches (small breaks) in the walls of blood vessels. Platelet _ granules contain lysosomal enzymes, dense granules contain ADP (a potent platelet aggregating factor) and serotonin (a vasoactive amine). They also release platelet-derived growth factor which presumably contributes to later repair processes by stimulating fibroblast proliferation. Synonym: thrombocytes. (09 Oct 1997) |