Extirpation :: Extirpation (n.) The act of extirpating or rooting out, or the state of being extirpated; eradication; excision; total destruction; as, the extirpation of weeds from land, of evil from the heart, of a race of men, of heresy..
Extirpative :: Extirpative (a.) Capable of rooting out, or tending to root out..