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
Kong said this soft approach helps address risks such as ulcers, puncture injuries, and inflammation, which are often linked to rigid devices inside the body.
—
Aamir Khollam, Interesting Engineering, 19 Sep. 2025
It should not be used by people with stomach ulcers, bleeding disorders or asthma.
—Melissa Rudy, FOXNews.com, 18 Sep. 2025
However, Phan noted that this is most common in people with underlying conditions, including gastroesophageal reflux disease (GERD), gastritis, ulcers, or irritable bowel syndrome (IBS).
—Sarah Garone, Health, 17 Sep. 2025
For example, a range of different infectious pathogens and diseases can lead to different chronic medical conditions such as COVID-19 leading to long COVID, human papillomavirus to cervical cancer, Helicobacter pylori to stomach ulcers and cancer, Epstein-Barr Virus to lymphoma.
—Bruce Y. Lee, Forbes.com, 9 Sep. 2025
See All Example Sentences for ulcer
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Aamir Khollam, Interesting Engineering, 19 Sep. 2025
It should not be used by people with stomach ulcers, bleeding disorders or asthma.
—Melissa Rudy, FOXNews.com, 18 Sep. 2025
However, Phan noted that this is most common in people with underlying conditions, including gastroesophageal reflux disease (GERD), gastritis, ulcers, or irritable bowel syndrome (IBS).
—Sarah Garone, Health, 17 Sep. 2025
For example, a range of different infectious pathogens and diseases can lead to different chronic medical conditions such as COVID-19 leading to long COVID, human papillomavirus to cervical cancer, Helicobacter pylori to stomach ulcers and cancer, Epstein-Barr Virus to lymphoma.
—Bruce Y. Lee, Forbes.com, 9 Sep. 2025
See All Example Sentences for ulcer
Cite this Entry
“Ulcer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ulcer. Accessed 26 Sep. 2025.
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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