ulceration

verb (used without object), ul·cer·at·ed, ul·cer·at·ing.

1. to form an ulcer; become ulcerous: His skin ulcerated after exposure to radioactive material.

verb (used with object), ul·cer·at·ed, ul·cer·at·ing.

2. to cause an ulcer on or in: Continued worry ulcerated his stomach.

noun

1. the development or formation of an ulcer
2. an ulcer or an ulcerous condition

verb

1. to make or become ulcerous

n.c.1400, from Latin ulcerationem (nominative ulceratio), noun of action from ulcerare, from ulcer (see ulcer). n.

1. Development of an ulcer.
2. An ulcer or an ulcerous condition.

v.

1. To develop an ulcer; become ulcerous.