degradation

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degradation

 [deg″rah-da´shun]
conversion of a chemical compound to one less complex, as by splitting off one or more groups of atoms. See also lysis.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

deg·ra·da·tion

(deg'ră-dā'shŭn),
The change of a chemical compound into a less complex compound.
[L. degradatus, degrade]
Farlex Partner Medical Dictionary © Farlex 2012

degradation

(dĕg′rə-dā′shən)
n.
1. The act or process of degrading.
2. The state of being degraded; degeneration.
3. A decline to a lower condition, quality, or level.
4. Chemistry Decomposition of a compound, especially complex substances such as polymers and proteins, by stages, exhibiting well-defined intermediate products.

deg′ra·da′tive adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

deg·ra·da·tion

(deg'ră-dā'shŭn)
The change of a chemical compound into a less complex compound.
[L. degradatus, degrade]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

deg·ra·da·tion

(deg'ră-dā'shŭn)
The change of a chemical compound into a less complex compound.
[L. degradatus, degrade]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Although the studies with zero-valent copper nanoparticles (nZVC) are still scarce, the use of this material is highly attractive in degradation processes of organic compounds [30-32].
1) For each scenario i, if the degradations [z.sup.i.sub.t] exceeds the failure threshold, CM will be triggered.
Advanced oxidation processes (AOPs) are very efficient methods for degradation of recalcitrant organic compounds in industrial and agricultural effluents [4,5].
Both holes and electrons can cause rapid destruction of organic materials, thus accelerating degradation of the polymer matrix.
When an end user experiences application or transaction response time degradation or failure, isolating the specific problem domain can be a painstaking task, requiring anywhere from several hours to several days to complete.
The bonds subject to the various chemical degradations are highlighted for easy identification.
Degradations were performed in both isothermal and dynamic heating conditions, under a pure nitrogen flow (20 ml/min) and in a static air atmosphere.
The styrene/butadine copolymers (PS/PB) and their blends are susceptible to thermal oxidative degradation at elevated temperatures.
The terms land degradation and desertification has a close relationship and several attempts to define and describe them have been made.
It has been recognized that stabilization against different modes of degradation is necessary if the useful life of a polymer is to be extended sufficiently to meet design requirements for long-term applications.
In the present pilot-scaled study, we aimed to investigate influencing factors, including pollutant initial concentration, lighting area, and catalyst loading, on phenol degradation using CT catalyst.