| CCCC | centrifugal countercurrent chromatography |
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| CCD | calibration curve data; central core disease; charge-coupled device; childhood celiac disease; cleid... |
| CCE | carboline carboxylic acid ester; chamois contagious ecthyma; clear-cell endothelioma; clubbing, cyan... |
| PMT | photo multiplier tube |
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| CCE | Countercurrent centrifugal elutriation |
| CIE | Countercurrent immunoelectrophoresis |
| HSCCC | High Speed Countercurrent Chromatography |
| countercurrent multiplier | A system in which energy is used to transport material across a membrane separating two countercurrent multiplier tubes connected at one end to form a hairpin shape; by this means a concentration can be achieved in the fluid in the hairpin bend, relative to the inflow and outflow fluids, that is much greater than the transport mechanism could produce between the two sides of the membrane at any point; e.g., the nephronic loops in the renal medulla act as countercurrent multipliers. (05 Mar 2000) |
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| multiplier | 1. One who, or that which, multiplies or increases number. 2. <mathematics> The number by which another number is multiplied. See the Note under Multiplication. 3. <physics> An instrument for multiplying or increasing by repetition or accumulation the intensity of a force or action, as heat or electricity. It is particularly used to render such a force or action appreciable or measurable when feeble. See Thermomultiplier. Origin: Cf. F. Multiplier. Cf. Multiplicator. Source: Websters Dictionary (01 Mar 1998) |
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| countercurrent | 1. Flowing in an opposite direction. 2. A current flowing in a direction opposite to another current. (05 Mar 2000) |
| countercurrent distribution | A method of separation of two or more substances by repeated distribution between two immiscible liquid phases that move past each other in opposite directions. It is a form of liquid-liquid chromatography. (12 Dec 1998) |
| countercurrent exchanger | A system in which heat or chemicals passively diffuse across a membrane separating two countercurrent exchanger streams so that at each end the fluid leaving along one side of the membrane nearly resembles, in temperature or composition, the fluid entering the other; e.g., the venae comites in the arms serve as a countercurrent exchanger exchanger, the arterial blood serving to rewarm the cooler venous blood. (05 Mar 2000) |
| countercurrent mechanism | A system in the renal medulla that facilitates concentration of the urine as it passes through the renal tubules. See: countercurrent exchanger, countercurrent multiplier. (05 Mar 2000) |
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