| histocytological preparation techniques | Methods of preparing cells or tissues for examination and study of their origin, structure, function, or pathology. The methods include preservation, fixation, sectioning, staining, replica, or other technique to allow for viewing using a microscope. (12 Dec 1998) |
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| histocytosis | A condition marked by the abnormal appearance of histiocytes (macrophages) in the blood. Lipid h., Niemann-Pick disease. Sinus h., a disorder of the lymph nodes in which the distended sinuses are completely or nearly completely, filled by histiocytes, as a result of active multiplication of the littoral cells. H. X, a generic term embracing eosinophilic granuloma, Letterer-Siwe disease and Hand-Schuller-Christian disease and indicating a shared common origin for the three entities. (16 Dec 1997) |
| histodifferentiation | The morphologic appearance of tissue characteristics during development. (05 Mar 2000) |
| histofluorescence | Fluorescence of the tissues under exposure to ultraviolet rays following the injection of a fluorescent substance or as a result of a natural fluorescing substance. (05 Mar 2000) |
| histogenesis | <embryology> The process of formation of a tissue, involving differentiation, morphogenesis and other processes such as angiogenesis, growth control, cellular infiltration etc. (18 Nov 1997) |
| histogenetic | <biology> Tissue-producing; connected with the formation and development of the organic tissues. See: Histogeny. Source: Websters Dictionary (01 Mar 1998) |
| histogenous | Formed by the tissues; e.g., the histogenous cells in an exudate arising from proliferation of the fixed tissue cells. Synonym: histiogenic. Origin: histo-+ G. -gen, producing (05 Mar 2000) |
| histogeny | <biology> Same as Histogenesis. Origin: Gr. "istos tissue + root of to be born. Source: Websters Dictionary (01 Mar 1998) |
| histogram | 1. A graphic columnar or bar representation to compare the magnitudes of frequencies or numbers of items. 2. Graphical representation of the frequency distribution of a variable, in which rectangles are drawn with their bases on a uniform linear scale representing intervals, and their heights are proportional to the values within each of the intervals. Origin: histo-+ G. Gramma, a writing (05 Mar 2000) |
| histographer | One who describes organic tissues; an histologist. Source: Websters Dictionary (01 Mar 1998) |
| histographical | Of or pertaining to histography. Source: Websters Dictionary (01 Mar 1998) |
| histography | A description of, or treatise on, organic tissues. Origin: Gr. "istos tissue. Source: Websters Dictionary (01 Mar 1998) |
| histohaematin | <physiology> One of a class of respiratory pigments, widely distributed in the animal kingdom, capable of ready oxidation and reduction. Origin: Gr. "istos tissue + E. Haematin. Source: Websters Dictionary (01 Mar 1998) |
| histoid | 1. Resembling in structure one of the tissues of the body. 2. Sometimes used with reference to the histologic structure of a neoplasm derived from and consisting of a single, relatively simple type of neoplastic tissue that closely resembles the normal, as in certain fibromas and leiomyomas. Synonym: histioid. Origin: histo-+ G. Eidos, resemblance (05 Mar 2000) |
| histoid leprosy | A form of lepromatous leprosy with lesions microscopically resembling dermatofibromas or other spindle-celled tumours. (05 Mar 2000) |