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From Biology-Online Dictionary
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(1) The change in the environment caused by natural or artificial input of harmful contaminants into the environment, and may cause instability, disruption or harmful effects to the ecosystem.

(2) The act of polluting; the state of being polluted.

(3) The pollutant or contaminant in the environment.


The different forms of pollution are as follows:

Word origin: from Late Latin pollutio "defilement," from Latin polluere "to soil, defile, contaminate"
Related forms: pollute (verb)

Related term: