A shallow ulceration or lesion, usually involving skin or epithelial tissue.
One of two fundamental operations in morphological image processing from which all other morphological operations are derived.
The result of having been worn away or eroded, as by a glacier on rock or the sea on a cliff face.
The changing of a surface by mechanical action, friction, thermal expansion contraction, or impact.
Loss of tooth enamel due to non-bacteriogenic chemical processes.
Destruction by abrasive action of fluids.
The gradual loss of something as a result of an ongoing process.
In morphology, a basic operation (denoted ⊖); see Erosion (morphology).