pollution

The act or process of polluting or the state of being polluted, especially the contamination of soil, water, or the atmosphere by the discharge of harmful substances.

Something that pollutes; a pollutant or a group of pollutants.

The act of polluting; also, the state of being polluted; defilement; uncleanness; impurity.

Specifically, legal or ceremonial uncleanness, disqualifying a person for sacred services or for intercourse with others, or rendering anything unfit for sacred use.

The emission of semen at any other time than during coition: more frequently called self-pollution.