Removing contaminants to improve quality.

Cleansing oneself internally and externally.

(Scientology) A detoxification program used by the Church of Scientology, involving exercise, vitamins, and long periods in a sauna, and supposed to treat long-term effects of drug abuse or exposure to toxins.

a ritual prescribed by a religion through which a person is considered to be freed of uncleanliness, especially prior to the worship of a deity, and ritual purity is a state of ritual cleanliness.

a series of processes intended to isolate one or a few proteins from a complex mixture, usually cells, tissues or whole organisms.

a solid phase extraction method to quickly purify nucleic acids.