verb (used without object), ulcerated, ulcerating.
to form an ulcer; become ulcerous: His skin ulcerated after exposure to radioactive material.
verb (used with object), ulcerated, ulcerating.
to cause an ulcer on or in: Continued worry ulcerated his stomach.

1375–1425; late Middle English < Latin ulcerātus (past participle of ulcerāre to make sore), equivalent to ulcer- (see ulcer) + -ātus -ate1

ulceration, noun
unulcerated, adjective
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World English Dictionary
ulcerate (ˈʌlsəˌreɪt)
to make or become ulcerous

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

ulcerate ul·cer·ate (ŭl'sə-rāt')
v. ul·cer·at·ed, ul·cer·at·ing, ul·cer·ates
To develop an ulcer; become ulcerous.

ul'cer·a'tive (-sə-rā'tĭv, -sər-ə-tĭv) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Sometimes deep red bumps may appear, particularly on the leg, where they may ulcerate.
Occasional use can cause a stuffy or runny nose, while chronic use can ulcerate the mucous membrane of the nose.
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