Definition of pollution in English:
The presence in or introduction into the environment of a substance which has harmful or poisonous effects: the level of pollution in the air is rising
More example sentences
- Insidious pollution of the soil is the main cause of extinction of plant species in the UK.
- People move or reduce physical activities when air pollution becomes intolerable.
- This is a wasteful process causing a net loss of nitrogen to the animal and pollution of the environment.