verb (used without object), ul·cer·at·ed, ul·cer·at·ing.
- 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.
- to cause an ulcer on or in: Continued worry ulcerated his stomach.
- to make or become ulcerous
- To develop an ulcer; become ulcerous.