Degradation

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degradation

[‚deg·rə′dā·shən]
(computer science)
Condition under which a computer operates when some area of memory or some units of peripheral equipment are not available to the user.
(geology)
The wearing down of the land surface by processes of erosion and weathering.
(hydrology)
Lowering of a stream bed.
Shrinkage or disappearance of permafrost.
(organic chemistry)
Conversion of an organic compound to one containing a smaller number of carbon atoms.
(physics)
Loss of energy of a particle, such as a neutron or photon, through a collision.
(thermodynamics)
The conversion of energy into forms that are increasingly difficult to convert into work, resulting from the general tendency of entropy to increase.

Degradation

A loss of the original characteristics, or weakening of an element by erosion; a disintegration of paint by heat, moisture, sunlight or natural weathering. Also harmful action caused by human activity, such as vandalism.

Degradation

 

in biology, the simplification in structure and function of animals or plants under the influence of conditions of existence that have altered. Distinction is made between ontogenetic degradation—that is, simplification of the organism in the final stages of its development as compared with the initial stages—and phylogenetic degradation, or simplification of the structure of descendants as compared with the organization of their ancestors.

degradation

Disintegration of a paint film by heat, moisture, sunlight, or natural causes.
References in periodicals archive ?
2009), The Little REDD+ Book: An Updated Guide to Governmental Proposals for Reducing Emissions from Deforestation and Degredation, Oxford, Global Canopy Programme.
His Legacy environment had issues with performance degredation, so although his Hitachi started out with 3.
rosea Hillhouse B et al Inhibition of AChE would 2004 prevent the degredation of Ach [right arrow] [up arrow] memory R.
One report suggested yesterday that Madeleine's DNA had been found on the floor of the McCanns' apartment, but due to degredation it was based on an incomplete picture, with only 15 of the 20 genetic markers usually used for such analysis.
While radical-feminist prostitution abolitionists emphasize the victimization of women as prostitutes, then, Born in to Brothels focuses on the victimization of the children, and tends to accept the degredation of Sonagachi's adults.
Traditionally, blacks have been relegated to second class status by separation, degredation, and the abuse of the criminal justice system.
Unlike conventional filtration systems, which simply filter out unwanted burned food particles or sediments in the oil, OilFresh suppresses the oil breakdown process in the first place by reducing oxydative degredation.
Development of polysaccharide degredation activity in postlarval abalone Haliotis discus hannai.
An understanding of the long-term impacts of intrusive infrastructure development and environmental degredation to provide balance to arguments about the first cost of underground solutions versus surface or elevated solutions;
It was about the time when we were starting to look at regenerating the Albert Dock, and Liverpool was beginnning to get to grips with the dereliction and degredation of the 1950s and 1960s.
Neta, Ionizing radiation induced degredation of tetrachlorobiphenyl (PCB 54) in transformer oil, Environ.
These were not extreme acts of cruelty but instead showed very clearly what it is like to be condemned to a never-ending sentence of humiliation, degredation and suffering - guilty of no crime other than that of becoming old and dependent in Britain.