Definition of "cleanse"

cleanse

/klɛnz/

verb
third-person singular simple present cleanses, present participle cleansing, simple past and past participle cleansed
1. (transitive) To free from dirt; to clean, to purify.
  Quotations
  An artificial kidney these days still means a refrigerator-sized dialysis machine. Such devices mimic the way real kidneys cleanse blood and eject impurities and surplus water as urine.
  2013 June 1, “A better waterworks”, in The Economist‎, volume 407, number 8838, page 5 (Technology Quarterly)
2. (transitive) To spiritually purify; to free from guilt or sin; to purge.
  Quotations
  [T]he famous Ganges: whoſe vnknowne head, pleaſant ſtreames, and long extent, haue amongſt thoſe Heathen Inhabitants, (by the Tradition of their Forefathers) gained a beliefe of clenſing all ſuch ſinnes, as the bodies of thoſe that waſh therein brought with them: [...]
  1626, William Methold , page 993
3. (transitive) To remove (something seen as unpleasant) from a person, place, or thing.
noun
plural cleanses
1. An act of cleansing; a purification.