Meaning

• 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.

• The gradual loss of something as a result of an ongoing process.

  "the erosion of a person's trust"

• Destruction by abrasive action of fluids.

• (image processing) One of two fundamental operations in morphological image processing from which all other morphological operations are derived.

• Loss of tooth enamel due to non-bacteriogenic chemical processes.

• A shallow ulceration or lesion, usually involving skin or epithelial tissue.

• In morphology, a basic operation (denoted ⊖); see Erosion (morphology).