Definitions
1.nounThe desecration of something holy or sacred; defilement, profanation.
2.nounThe ejaculation of semen outside of sexual intercourse, especially a nocturnal emission.
3.nounMoral or spiritual corruption; impurity, degradation, defilement.
4.nounPhysical contamination, now especially the contamination of the environment by harmful substances, or by disruptive levels of noise, light etc.
5.nounSomething that pollutes; a pollutant.