It usually involves a man or woman visiting a place that is particularly unclean.
If you receive a body piercing in an unclean environment with equipment that is not properly sterilized, you take the risk of contracting a potentially life threatening disease.
Jews will wash their hands before leaving a cemetery, as it is considered unclean to be around a dead body.
He is specially chosen for good character, and Azan must not be recited by any one unclean, by a drunkard, by the insane, or by a woman.
An unclean person is universally a slothful one, one who sits by a stove, whom the sun shines on prostrate, who reposes without being fatigued.
Carmen let loose of his waist, moving away from the unclean thought.
He hesitated whether to go, but was persuaded by a vision and the injunction to call nothing unclean which God had cleansed.
In the 3rd century this love of mystification reached the pitch of hiding even the gospels from the unclean eyes of pagans.
In Madras especially the idea of ceremonial pollution by the proximity of an unclean caste has been developed with much elaboration.
We note the laws respecting the clean and unclean animals (certainly based on ancient custom).