purge

	1. cleansing; cleaning of excess files from a hard disk (Computers); erasing of a file without the option of canceling the erasure (Computers); diarrhetic drug, cathartic
	2. purify, remove contamination; clean, remove dirt; defecate, empty the bowels
	3. R E M O V E P E O P L E (v) to free (esp. a political group) from (unwanted people) by removing them from office or, sometimes, by killing them Party leaders have undertaken to purge the party of extremists. The new prime minister is expected to purge his cabinet of ministers from his predecessor's government. Hard-liners are expected to be purged from the administration.
	4. To force a gas through a water sample to liberate volatile chemicals or other gases from the water so their level can be measured.