Extermination

n.	1.	The act of exterminating; total destruction; eradication; excision; as, the extermination of inhabitants or tribes, of error or vice, or of weeds from a field.
	2.	(Math.) Elimination.

Noun	1.	extermination - complete annihilation; "they think a meteor cause the extinction of the dinosaurs" Synonyms: extinction
	2.	extermination - the act of exterminating Synonyms: liquidation

abolishment, abolition, annihilation, annulment, bane, blood, bloodletting, bloodshed, braining, choking, choking off, dealing death, deracination, destruction, destruction of life, dispatch, elimination, eradication, euthanasia, execution, extinction, extinguishment, extirpation, flow of blood, gore, immolation, kill, killing, lapidation, liquidation, martyrdom, martyrization, mercy killing, negation, nullification, poisoning, purge, ritual killing, ritual murder, rooting out, sacrifice, shooting, silencing, slaughter, slaying, snuffing out, stifling, stoning, strangulation, suffocation, suppression, taking of life, uprooting, voiding