World English Dictionary
bioremediation (ˌbaɪəorɪˌmiːdɪˈeɪʃən)
Also called: phytoremediation the use of plants to extract heavy metals from contaminated soils and water

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
bioremediation   (bī'ō-rĭ-mē'dē-ā'shən)  Pronunciation Key 
The use of biological agents, such as bacteria, fungi, or green plants, to remove or neutralize contaminants, as in polluted soil or water. Bacteria and fungi generally work by breaking down contaminants such as petroleum into less harmful substances. Plants can be used to aerate polluted soil and stimulate microbial action. They can also absorb contaminants such as salts and metals into their tissues, which are then harvested and disposed of. ◇ The use of green plants to decontaminate polluted soil or water is called phytoremediation.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary
bioremediation [(beye-oh-ri-mee-dee-ay-shuhn)]

The use of certain biological agents, especially bacteria, to remove or neutralize contaminants from polluted soil or water.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences for bioremediation
Bacteria are also used for the bioremediation of industrial toxic wastes.
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