腐蝕

腐蚀
fǔshí
  1. corrosion
  2. to corrode (degrade chemically)
  3. to rot
  4. corruption

CEDICT

Entry Composition

1 腐 fǔ
  1. decay
  2. rotten
2 蝕 shí
  1. to nibble away at sth
  2. to eat into
  3. to erode