| karyorrhexis | <cell biology> Degeneration of the nucleus of a cell. There is contraction of the chromatin into small pieces, with obliteration of the nuclear boundary. (18 Nov 1997) |
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| karyosome | <cell biology> The central portion of a cells nucleus that typically contains a glob of heterochromatin. Origin: Gr. Soma = body (09 Oct 1997) |
| karyostasis | Synonym: interphase. Origin: karyo-+ G. Stasis, a standing still (05 Mar 2000) |
| karyostenosis | <biology> Direct cell division (in which there is first a simple division of the nucleus, without any changes in its structure, followed by division of the protoplasm of the karyostenotic mode of nuclear division. Origin: NL, fr. Gr. A nut, kernel + a being straitened. Source: Websters Dictionary (01 Mar 1998) |
| karyotheca | Synonym: nuclear envelope. Origin: karyo-+ G. Theke, box, sheath (05 Mar 2000) |
| karyotype | <genetics> The complete set of chromosomes of a cell or organism. Used especially for the display prepared from photographs of mitotic chromosomes arranged in homologous pairs. (18 Nov 1997) |
| karyotypic abnormality | Abnormality in the number form or structure of chromosomes. Particular abnormalities are associated with particular sub- types of leukaemia. (27 Sep 1997) |
| karyotyping | Producing a karyotype for a cell or a cell line. (27 Sep 1997) |
| karyotyping, flow | Use of flow cytometry to analyze and/or separate chromosomes on the basis of their DNA content. Flow cytometry detects the light- absorbing or fluorescing properties of chromosomes passing in a narrow stream through a laser beam and with automated sorting devices can sort successive droplets of the stream into different fractions depending on the fluorescence emitted by each droplet. (12 Dec 1998) |
| karyozoic | Denoting a parasite inhabiting the cell nucleus of its host. Origin: karyo-+ G. Zoon, animal (05 Mar 2000) |
| Kasabach | Haig H., U.S. Physician, 1898-1943. See: Kasabach-Merritt syndrome. (05 Mar 2000) |
| kasabach-merritt syndrome | <syndrome> Thrombocytopenia caused by sequestration and destruction of platelets in a large cavernous haemangioma, usually seen in infants, rare in adults (12 Dec 1998) |
| kasack | <ethnology> Same as Cossack. Source: Websters Dictionary (01 Mar 1998) |
| kasai | A form of anaemia occurring in natives of Zaire (formerly the Belgian Congo), with associated oedema of subcutaneous tissues, depigmented regions in the skin, and various gastrointestinal disturbances; thought to result from deficiencies in nutrition. Synonym: Belgian Congo anaemia. (05 Mar 2000) |
| Kasai operation | An operation for biliary atresia in which a Roux-en-Y loop of jejunum is anastomosed to the hepatic end of the divided extravascular portal structures, including rudimentary bile ducts. Synonym: Kasai operation. (05 Mar 2000) |