iskoreniti

1. to eradicate; to stamp out
   Vlada obećava da će iskoreniti korupciju. — The government promises to stamp out corruption.
   Ta bolest je u Evropi davno iskorenjena. — That disease was eradicated in Europe long ago.
2. (of plants) to uproot; to pull out by the roots
   Deda je iskorenio stari panj u dvorištu. — Grandpa uprooted the old stump in the yard.

The imperfective is iskorenjivati.