1
: a break in skin or mucous membrane with loss of surface tissue, disintegration and necrosis of epithelial tissue, and often pus
2
: something that festers and corrupts like an open sore
ulcer
verb
Examples of ulcer in a Sentence
Recent Examples on the Web
Others are more serious than hemorrhoids but treatable, like an ulcer, an anal fissure, a polyp, or a medication (like an NSAID or blood thinner) that can cause bleeding as a side effect.
—
Theresa Tamkins, SELF, 10 June 2024
The match was originally slated for July 20 but was delayed after Tyson suffered an ulcer flareup during a flight from Miami to Los Angeles on May 26.
—Cnn.com Wire Service, The Mercury News, 7 June 2024
Tyson, who trained in Arizona, had a recent ulcer flare-up, and doctors advised him to lighten his training for a few weeks to rest and recover.
—Dina Kaur, The Arizona Republic, 5 June 2024
As a defense mechanism, ladybugs secrete a substance that can cause painful mouth and stomach ulcers, Watkins says.
—Clare Mulroy, USA TODAY, 30 May 2024
See all Example Sentences for ulcer 
Theresa Tamkins, SELF, 10 June 2024
The match was originally slated for July 20 but was delayed after Tyson suffered an ulcer flareup during a flight from Miami to Los Angeles on May 26.
—Cnn.com Wire Service, The Mercury News, 7 June 2024
Tyson, who trained in Arizona, had a recent ulcer flare-up, and doctors advised him to lighten his training for a few weeks to rest and recover.
—Dina Kaur, The Arizona Republic, 5 June 2024
As a defense mechanism, ladybugs secrete a substance that can cause painful mouth and stomach ulcers, Watkins says.
—Clare Mulroy, USA TODAY, 30 May 2024
See all Example Sentences for ulcer
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ulcer.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near ulcer
Cite this Entry
“Ulcer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ulcer. Accessed 4 Jul. 2024.
Copy CitationKids Definition
ulcer
noun
ul·cer
ˈəl-sər 
: a slow-healing open sore in which tissue breaks down
Medical Definition
ulcer
1 of 2 noun
ul·cer
ˈəl-sər
: a break in skin or mucous membrane with loss of surface tissue, disintegration and necrosis of epithelial tissue, and often pus
a stomach ulcer
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