eradication

[L. eradicatio: cf. F. éradication.]

1. The act of plucking up by the roots; a rooting out; extirpation; utter destruction.

2. The state of being plucked up by the roots.

noun

1. The act or process of eliminating: clearance, elimination, liquidation, purge, removal, riddance. See keep/release.
2. Utter destruction: annihilation, extermination, extinction, extinguishment, extirpation, liquidation, obliteration. See crimes, help/harm/harmless, make/unmake.

The noun has one meaning:

Meaning #1: the complete destruction of every trace of something
  Synonym: obliteration