Web Results
pol·lu·tion
[puh-loo-shuhn]
NOUN
1.
the act of polluting or the state of being polluted.
2.
the introduction of harmful substances or products into the environment: air pollution.
Source: Dictionary.com
pollution | Define pollution at Dictionary.com
dictionary.reference.com/browse/pollution
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en.wikipedia.org/wiki/Pollution

Pollution is the introduction of contaminants into the natural environment that cause adverse ..... Jump up ^ "Pollution - Definition from the Merriam-Webster Online Dictionary". Merriam-webster.com. 2010-08-13. Retrieved 2010-08-26. Jump up ...

www.merriam-webster.com/dictionary/pollution

Define pollution: the action or process of making land, water, air, etc., dirty and not safe or suitable to use — pollution in a sentence.

www.dictionary.com/browse/pollution

Pollution definition, the act of polluting or the state of being polluted. See more.

www.vocabulary.com/dictionary/pollution

Pollution is unwanted, harmful stuff contaminating an environment. The race to develop clean energy is motivated by high levels of pollution that people fear are  ...

www.businessdictionary.com/definition/pollution.html

Definition of pollution: Presence of matter (gas, liquid, solid) or energy (heat, noise, radiation) whose nature, location, or quantity directly or indirectly alters ...

www.collinsdictionary.com/us/dictionary/english/pollution

Pollution definition: Pollution is the process of polluting water, air, or land, especially with poisonous... | Meaning, pronunciation, translations and examples.

en.oxforddictionaries.com/definition/pollution

the presence in or introduction into the environment of a... Meaning, pronunciation, example sentences, and more from Oxford Dictionaries.

www.thefreedictionary.com/pollution

The act or process of polluting or the state of being polluted, especially the contamination of soil, water, or the atmosphere by the discharge of harmful ...

dictionary.cambridge.org/us/dictionary/english/pollution

pollution definition, meaning, what is pollution: damage caused to water, air, etc. by harmful substances or waste: . Learn more.