Source : Webster's Revised Unabridged Dictionary (1913)

Eradication \E*rad`i*ca"tion\, n. [L. eradicatio: cf. F.
   ['e]radication.]
   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.

Source : WordNet®

eradication
     n : the complete destruction of every trace of something [syn: {obliteration}]