Look up: Pollution

1. 
   Pollution
   Generally, the presence of a substance in the environment that because of its chemical composition or quantity prevents the functioning of natural processes and produces undesirable environmental and health effects.Under the Clean Water Act, for example, the term has been defined as the man-made or man-induced alteration of the physical, biological, chemical, and radiological integrity of water and other media.
   Found on http://www.epa.gov/OCEPAterms/
   
   
2. 
   pollution
   (Living things in their environment) contamination of the environment, usually by chemicals
   Found on http://www.bbc.co.uk/schools/gcsebitesiz
   
   
3. 
   pollution
   [Noun] The state of being impure or unfit for use, contaminated; the substance that pollutes.
   Example: After the oil spill the pollution spread along the coast.
   Found on http://www.bbc.co.uk/skillswise/glossary
   
   
4. 
   Pollution
   This occurs when substances enter an environment that are not naturally occurring or exceed naturally occurring levels.
   Found on http://www.bbc.co.uk/northernireland/sch
   
   
5. 
   pollution
   [n] - undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities
   Found on http://www.webdictionary.co.uk/definitio
   
   
6. 
   Pollution
   The presence of a substance in the environment that because of its chemical composition or quantity prevents the functioning of natural processes and produces undesirable environmental and health effects.
   Found on http://www.greenconstruction.co.uk/gloss
   
   
7. 
   Pollution
   The release into any environmental medium from any process or substances which are capable of causing harm to humans or any other living organisms supported by the environment.
   Found on http://www.shponline.co.uk/glossary.asp?
   
   
8. 
   Pollution
   The undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities
   Found on http://www.rarespark.co.uk/Glossary.htm
   
   
9. 
   Pollution
   The contamination of an environment by artificially produced contaminants with the result that organisms are harmed
   Found on http://www.think-energy.co.uk/ThinkEnerg
   
   
10. 
    Pollution
    is the adverse alteration of land, air or water by a substance. When any alteration is considered adverse, a substance becomes a pollutant.
    Found on http://www.epaw.co.uk/EPT/glossary.html
    
    
11. 
    pollution
    (Learning Modules / Geography / Urban sustainability) The presence of a substance in the environment that because of its chemical composition or quantity prevents the functioning of natural processes and produces undesirable environmental and health effects. Can be land, water or air based.
    Found on http://www.makingthemodernworld.org.uk/l
    
    
12. 
    pollution
    (Learning Modules / Geography / Geography of energy) The modification of the environment by substances or chemicals in a way that produces negative impacts.
    Found on http://www.makingthemodernworld.org.uk/l
    
    
13. 
    Pollution
    the introduction by man, directly or indirectly, of substances or energy to the marine environment resulting in deleterious effects.
    Found on http://www.fishonline.org/information/gl
    
    
14. 
    Pollution
    An undesirable contaminate (gas, liquid, noise, solid) which has been released into, and is now a part of, the environment.
    Found on http://www.peopleandplanet.net/section.p
    
    
15. 
    pollution
    Degradation of the atmosphere or the environment by noxious substances(pollutants)emanating from chemical,biological,urban or domestic wastes,and from environmental mismanagement Category: Management in the public and private sector
    Found on http://www.mijnwoordenboek.nl/definition
    
    
16. 
    Pollution
    Pol·lu'tion noun [ Latin pollutio : confer French pollution .] 1. The act of polluting, or the state of being polluted (in any sense of the verb); defilement; uncleanness; impurity. 2. (Medicine) The emission of semen, or sperm, at other times than in sexual intercourse. Dunglison.
    Found on http://www.encyclo.co.uk/webster/P/119
    
    
17. 
    pollution
    <ecology> The changing of a natural environment, either by natural or artificial means, so that the environment becomes harmful to the living things normally found in it. ... most often this refers to the input of toxic chemicals into the environment. ... (09 Oct 1997) ...
    Found on http://www.mondofacto.com/facts/dictiona
    
    
18. 
    pollution
    noun undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities
    Found on http://wordnet.princeton.edu/perl/webwn?
    
    
19. 
    Pollution
    `Pollution` is the introduction of contaminants into an environment that cause harm to human health, other living organisms, and the environment. Pollution can be in the form of chemical substances, or energy such as noise, heat, or light. Pollutants can be naturally occurring substances or energies, but are considered contaminants when in excess of natural levels. Pollution is often categorized into point source an nonpoint source pollution.
    Found on http://en.wikipedia.org/wiki/Pollution
    
    
20. 
    pollution
    (pә-loo´shәn) a process of defiling or making impure, especially contamination by noxious substances.
    Found on http://www.mercksource.com/pp/us/cns/cns
    
    
21. 
    Pollution
    • (n.) The act of polluting, or the state of being polluted (in any sense of the verb); defilement; uncleanness; impurity. • (n.) The emission of semen, or sperm, at other times than in sexual intercourse.
    Found on http://thinkexist.com/dictionary/meaning
    
    
22. 
    pollution
    (from the article `caste`) ...to raise themselves in the social order. Such efforts have been more successful in the case of low but ritually pure castes than in the case of ... The second reason, closely related to the foregoing, is that one element of dogma in every religion is the definition of polluting, or supernaturally ... ......
    Found on http://www.britannica.com/eb/a-z/p/89
    
    
23. 
    pollution
    the addition of any substance or form of energy (e.g., heat, sound, radioactivity) to the environment at a rate faster than the environment can ... [46 related articles]
    Found on http://www.britannica.com/eb/a-z/p/89
    
    
24. 
    pollution
    pollution 1. The introduction of harmful substances or products into the environment. 2. An undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities. 3. The act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors. 4. Etymology: fr...
    Found on http://www.wordinfo.info/words/index/inf
    
    
25. 
    pollution
    Rendering unclean or unsuitable by contact or mixture with an undesired contaminant. [L. pollutio, fr. pol-luo, pp. -lutus, to defile]
    Found on