Defilement

n.	1.	(Mil.) The protection of the interior walls of a fortification from an enfilading fire, as by covering them, or by a high parapet on the exposed side.
	1.	The act of defiling, or state of being defiled, whether physically or morally; pollution; foulness; dirtiness; uncleanness. Defilements of the flesh. - Hopkins. The chaste can not rake into such filth without danger of defilement. - Addison.

Noun

1.

defilement - the state of being polluted Synonyms: befoulment, pollution

befoul, befoulment, defile, dirtiness, foul, maculate, pollution, uncleanness