What does lesion mean?

Lesion (*noun*)

>1. a damaged or diseased area of tissue, especially skin or mucous membrane.

>2. (in pathology) an area of damaged or diseased tissue or cells, especially when accompanied by a change of structure.

>3. (archaic) an injury resulting in damage or destruction, especially on a bodily organ.

>4. (figurative) a harmful or damaging influence, condition, or practice, usually a psychological one.