| centrifugation, zonal | Centrifugation using a rotating chamber of large capacity in which to separate cell organelles by density-gradient centrifugation. (12 Dec 1998) |
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| centrifuge | A laboratory apparatus that separates mixed samples into homogenouscomponent layers by spinning them at high speed. (09 Oct 1997) |
| centrilobular | at or near the centre of a lobule, e.g., of the liver. (05 Mar 2000) |
| centrilobular emphysema | Emphysema affecting the lobules around their central bronchioles, causally related to bronchiolitis, and seen in coal-miner's pneumoconiosis. Synonym: centri-acinar emphysema. (05 Mar 2000) |
| centrin | <plant biology> Acidic phosphoproteins (20 kD), homologous to caltractin, found in striated flagella roots of various flagellated algae, centromsomal region of some mammalian cells and basal bodies of human sperm. (25 Jun 1999) |
| centriolar region | See: pericentriolar region or centrosome. (18 Nov 1997) |
| centriole | <cell biology> They are self-replicating, short, fibrous, rod-shaped organelles of animal cells. Each centriole is a short cylinder containing nine pairs of peripheral microtubules, arranged orthogonally so as to form the wall of the cylinder. Almost identical to basal body of cilium. The pericentriolar material, but not the centriole itself, is the major microtubule organising centre of the cell. Centrioles divide prior to mitosis and the daughter centrioles and their associated pericentriolar material come to lie at the poles of the spindle. (25 Jun 1999) |
| centripetal | Synonym: afferent. 2. Denoting the direction of the force pulling an object toward an axis of rotation. Synonym: axipetal. Origin: L. Centrum, centre, + peto, to seek (05 Mar 2000) |
| centripetal current | The direction of current flow in a nerve when the anode is placed peripheral to the cathode, in contrast to descending current; the convention used is that current flows from positive to negative. Synonym: centripetal current. (05 Mar 2000) |
| centripetal nerve | <anatomy, physiology> A nerve which transmits impulses from the tissues to the brain and spinal cord (for example sensory nerve). (27 Sep 1997) |
| centro- | Combining form denoting centre. Origin: G. Kentron (05 Mar 2000) |
| centroacinar cell | A cell of the pancreatic ductule that occupies the lumen of an acinus; it secretes bicarbonate and water, providing an alkaline pH necessary for enzyme activity in the intestine. (05 Mar 2000) |
| centroblast | A lymphocyte with a large non-cleaved nucleus. Origin: centro-+ G. Blastos, germ (05 Mar 2000) |
| Centrocestus | A genus of extremely small fish-borne flukes (family Heterophyidae) that may produce intestinal lesions similar to those caused by Heterophyes heterophyes. Centrocestus formosana has been reported from man in Taiwan. Origin: G. Kentron, point, centre, + kestos, belt, both words fr. Kenteo, to pierce (05 Mar 2000) |
| centrocyte | 1. A cell whose protoplasm contains single and double granules of varying size stainable with haematoxylin; seen in lesions of lichen planus. Synonym: Lipschutz cell. 2. A lymphocyte with a small cleaved nuclei. Origin: centro-+ G. Kytos, cell (05 Mar 2000) |
| centrifuge |
A device in which solid or liquid particles of different densities are separated by rotating them in a tube in a horizontal circle. The denser particles tend to move along the length of the tube to a greater radius of rotation, displacing the lighter particles to the other end.
출처: www.fao.org/docrep/003/X3910E/X3910E06.htm
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| centriole |
An organelle in many animal cells that appears to be involved in the formation of the spindle during mitosis. During cell division, the two centrioles move to opposite sides of the nucleus to form the ends of the spindle.
출처: www.fao.org/docrep/003/X3910E/X3910E06.htm
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| centrifugation |
Separating molecules by size or density using centrifugal forces generated by a spinning rotor. G-forces of several hundred thousand times gravity are generated in ultracentrifugation. See density gradient centrifugation.
출처: www.fao.org/docrep/003/X3910E/X3910E06.htm
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| centrosome |
A specialized region of a living cell, situated next to the nucleus, where micro-tubules are assembled and broken down during cell division. The centrosome of most animal cells contains a pair of centrioles. During metaphase the centrosome separates into two regions, each containing one of the centrioles.
출처: www.fao.org/docrep/003/X3910E/X3910E06.htm
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| central |
A modern sugar mill.
출처: library.thinkquest.org/18355/glossary.html
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| centr | a genus of Cuculidae |
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| centr | Australian bird with a tail like a pheasant |
| centr | common coucal of India and China |
| centr | a genus of chiefly tropical American vines of the family Leguminosae having trifoliate leaves and large flowers |
| centr | large-flowered weakly twining or prostrate vine of New Jersey to tropical eastern North America, sometimes cultivated for its purple and white flowers |
| centr | small region of cytoplasm adjacent to the nucleus |
| centr | of or relating to a centrosome |
| centr | used in former classification systems |
| centr | having a symmetrical arrangement of radiating parts about a central point |
| centr | the main body of a vertebra |