A chronic, non-healing sore or ulcer, esp. one that extends into surrounding tissue; (in early use) spec. a cancer, or the disease cancer. Perhaps…

A festering sore; the fact or condition of festering.

Originally: †an abnormal tubular passage between the skin and an organ or cavity within the body, typically draining pus or other matter (cf. fistula…

? A running ulcer.

A disease characterized by running sores, esp. in an animal. Cf. mormal, n.

A sore or ulcer, usually with a dry crust or scab, found esp. on the legs. Also figurative. Now historical.

Originally: a red and pustular eruption of the skin of the face, probably rosacea. Later: a red rash in an infant or young child, probably…

Pathology. An erosive solution of continuity in any external or internal surface of the body, forming an open sore attended with a secretion of pus…

Medicine. Originally: any abnormal tube-like passage between the skin and an organ or cavity within the body, typically exuding pus or other…

A gangrenous sore.

A gnawing or wearing away, erosion. Now rare. Also concrete †a canker, a fretting sore; a decayed spot (in the wood of a bow or arrow, in a hair).

concrete. An ulcerated place; a sore.

Ulceration that spreads and destroys surrounding tissue; an ulcer of this nature.

Applied to various kinds of ulcer or morbid growth on the skin, resembling a fig. ? Obsolete.

An ulcerous formation; an ulcer or group of ulcers.

A fistula. Obsolete.

A small ulcer.

The action of fester, v. (in various senses); an instance or result of this.