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Eutrophication Definition

Noun: eutrophication  ,yoo-tru-fi'key-shun

  1. Excessive nutrients in a lake or other body of water, usually caused by runoff of nutrients (animal waste, fertilizers, sewage) from the land, which causes a dense growth of plant life; the decomposition of the plants depletes the supply of oxygen, leading to the death of animal life
    "he argued that the controlling factor in eutrophication is not nitrate but phosphate"