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

ulceration (ˌʌlsəˈreɪʃən)
1.  the development or formation of an ulcer
2.  an ulcer or an ulcerous condition

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.

ulceration ul·cer·a·tion (ŭl'sə-rā'shən)

  1. Development of an ulcer.

  2. An ulcer or an ulcerous condition.

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
Diabetic foot disease, caused by changes in blood vessels and nerves, often leads to ulceration and eventual amputation.
A chancre is a painless ulceration formed during the primary stage of syphilis.
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