ulceration

Development of an ulcer.

An ulcer or an ulcerous condition.

The formation of an ulcer.

The result of such formation; an ulcer.

The process of forming an ulcer, or of becoming ulcerous; the state of being ulcerated; also, an ulcer.

The development of an ulcer

An ulcerous condition

a circumscribed inflammatory and often suppurating lesion on the skin or an internal mucous surface resulting in necrosis of tissue

the process of ulcer formation; the process of becoming ulcerated