WordWeb Online

1. (geology) the mechanical process of wearing or grinding something down (as by particles washing over it)
   - erosion, eating away, wearing, wearing away

1. Become ground down or deteriorate
   "Her confidence eroded"
   - gnaw, gnaw at, eat at, wear away
    
2. Remove soil or rock
   "Rain eroded the terraces"
   - eat away, fret

See also: erosion, erosive

Type of: crumble, damage, decay, dilapidate, geologic process, geological process

Encyclopedia: Erode