- to eat into or away; destroy by slow consumption or disintegration: Battery acid had eroded the engine. Inflation erodes the value of our money.
- to form (a gully, butte, or the like) by erosion.
- to become eroded.
- to grind or wear down or away or become ground or worn down or away
- to deteriorate or cause to deteriorate
- to remove (tissue) by ulceration