the GNU version of the Collaborative International Dictionary of English
n. The process of forming an ulcer, or of becoming ulcerous; the state of being ulcerated; also, an ulcer.
The Century Dictionary and Cyclopedia
n. The formation of an ulcer.
n. The result of such formation; an ulcer.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a circumscribed inflammatory and often suppurating lesion on the skin or an internal mucous surface resulting in necrosis of tissue
n. the process of ulcer formation; the process of becoming ulcerated
Word Usage
"The form of ulceration which is presented by cancer in its latest stages bears so great a resemblance to suppurative ulceration that the two things have long since been compared."