(palynology, of a pollen grain) Having an ulcus, a rounded pore-like aperture, at one or both poles.

(medicine, transitive) To cause an ulcer to develop. / (medicine, intransitive) To become ulcerous.

affected with ulcers

Third-person singular simple present indicative form of ulcerate

The development of an ulcer. / An ulcerous condition.

Of or relating to an ulcer / Having an ulcer

(pathology) An open sore of the skin, eyes or mucous membrane, often caused by an initial abrasion and generally maintained by an inflammation and/or an infection. / (pathology) Peptic ulcer.

plural of ulcer

plural of ulceration

present participle of ulcerate