Longman Dictionary of Contemporary English homepage

pollution

 noun
     
pol‧lu‧tion W2 [uncountable]
1 the process of making air, water, soil etc dangerously dirty and not suitable for people to use, or the state of being dangerously dirty:
California's tough anti-pollution laws
air/water/soil pollution
air pollution from traffic fumes
pollution prevention/standards/control
The costs of pollution control must be considered.
2 substances that make air, water, soil etc dangerously dirty:
industrial/chemical etc pollution
the effects of industrial pollution on the population
The chemicals have been identified as a source of pollution.
WORD FOCUS: environment WORD FOCUS: environment
good for the environment: environmentally friendly, eco-friendly, sustainable, recyclable, biodegradable, renewable, organic
people who want to protect the environment: greens, eco-warriors
things that cause harm to the environment: pollution, greenhouse gases, global warming, acid rain, deforestationenvironment

➔ See also environment
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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