pollution
pol-lu-tion · noun
Definitions
noun
- 1.
The presence or introduction of harmful substances or contaminants into the environment.
- 2.
The act or process of polluting or the state of being polluted.
Phrases & expressions
- •air pollution — contamination of the atmosphere
- •water pollution — contamination of water bodies
- •noise pollution — excessive or harmful sounds in the environment
- •light pollution — excessive artificial lighting
Related words
Etymology
From Latin pollutio ("defilement"), from polluere ("to defile, pollute"), from por- ("before") + luere ("to wash"). Originally referred to ceremonial or moral defilement before acquiring environmental meaning.