| hematoidin | <physiology> A crystalline or amorphous pigment, free from iron, formed from haematin in old blood stains, and in old hemorrhages in the body. It resembles bilirubin. When present in the corpora lutea it is called haemolutein. Source: Websters Dictionary (01 Mar 1998) |
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| hematological | <haematology> Relating to haematology, that is that branch of medical science which studies the morphology of the blood and blood forming tissues. (18 Nov 1997) |
| hematology | <study> The study of the morphology of the blood and blood forming tissues. (18 Nov 1997) |
| hematoma | <haematology, pathology> A localised collection of blood, usually clotted, in an organ, space or tissue, due to a break in the wall of a blood vessel. (18 Nov 1997) |
| hematophilia | <medicine> A condition characterised by a tendency to profuse and uncontrollable hemorrhage from the slightest wounds. Origin: NL, fr. Gr. A"i^ma, a"imatos, blood + to love. Source: Websters Dictionary (01 Mar 1998) |
| hematopoesis | <haematology> The formation and development of blood cells involving both proliferation and differentiation from stem cells. In adult mammals usually occurs in bone marrow. (18 Nov 1997) |
| hematopoiesis | <haematology> The formation and development of blood cells involving both proliferation and differentiation from stem cells. In adult mammals usually occurs in bone marrow. (18 Nov 1997) |
| hematopoietic stem cell | <haematology> Cell that gives rise to distinct daughter cells, one a replica of the stem cell, one a cell that will further proliferate and differentiate into a mature blood cell. Pluripotent stem cells can give rise to all lineages, committed stem cells (derived from the pluripotent stem cell) only to some. (18 Nov 1997) |
| hematosin | <physiology> The haematin of blood. Source: Websters Dictionary (01 Mar 1998) |
| hematosis | <physiology> Sanguification; the conversion of chyle into blood. The arterialization of the blood in the lungs; the formation of blood in general; haematogenesis. Origin: NL, fr. Gr. A"imatwsis. Source: Websters Dictionary (01 Mar 1998) |
| hematotherma | <zoology> The warm-blooded vertebrates, comprising the mammals and birds; the antithesis to haematocrya. Origin: NL, from Gr. A"i^ma, a"imatos, blood + thermos warm. Source: Websters Dictionary (01 Mar 1998) |
| hematothermal | <physiology> Having warm blood; applied especially to those animals, as birds and mammals, which have warm blood, or, more properly, the power of maintaining a nearly uniform temperature whatever the temperature of the surrounding air. See Homoiothermal. Source: Websters Dictionary (01 Mar 1998) |
| hematoxylin | <chemical> Basophilic stain that gives a blue colour (to the nucleus of a cell for example), commonly used in conjunction with eosin that stains the cytoplasm pink or red. Various modifications of haematoxylin have been developed. The histopathologist's H&E is haematoxylin and eosin. (18 Nov 1997) |
| hematuria | <clinical sign, urology> The finding of blood in the urine. Origin: Gr. Ouron = urine (18 Nov 1997) |