Verb

(head)

(cleanse)

Verb

(cleans)

To free from dirt; to clean, purify.

*{{quote-magazine, title=A better waterworks, date=2013-06-01, volume=407, issue=8838

, page=5 (Technology Quarterly), magazine=(The Economist) citation , passage=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.}}

To spiritually purify; to free from sin or guilt; to purge.

Verb

(head)

(scour)

Verb

(en verb)

To clean, polish, or wash something by scrubbing it vigorously.

He scoured the burner pans to remove the burnt spills.

To remove by rubbing or cleansing; to sweep along or off.

He scoured the burnt food from the pan.

* Shakespeare

[I will] stain my favors in a bloody mask, / Which, washed away, shall scour my shame with it.

To search an area thoroughly.

They scoured the scene of the crime for clues.

(ambitransitive) To move swiftly over; to brush along.

* Alexander Pope

when swift Camilla scours the plain

* Dryden

So four fierce coursers, starting to the race, / Scour through the plain, and lengthen every pace.

(veterinary medicine) Of livestock, to suffer from diarrhea.

If a lamb is scouring , do not delay treatment.

(veterinary medicine) To purge.

to scour a horse

(obsolete) To cleanse.

* Francis Bacon

Warm water is softer than cold, for it scoureth better.