1. [ noun ] (medicine,pathology) a circumscribed inflammatory and often suppurating lesion on the skin or an internal mucous surface resulting in necrosis of tissue
Synonyms: ulcer
Related terms: lesion bedsore peptic_ulcer canker noli-me-tangere aphthous_ulcer chancroid noma ulcerate
2. [ noun ] (biology) the process of ulcer formation; the process of becoming ulcerated
Related terms: organic_process ulcerate
Similar spelling:   ulcerative