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
Sold them short because of their skill at winning when ulcers aggravate and palms sweat.
—
Troy Renck, Denver Post, 24 Nov. 2025
In March, the Supreme Court of Louisiana rejected an attempt to declare the state's immunity law unconstitutional from a woman who developed pressure ulcers during a lengthy rehab hospital stay in early 2020.
—Madeline Heim, jsonline.com, 21 Nov. 2025
Foot ulcers can also be a complication caused by diabetes and are often overlooked.
—Christa Swanson, CBS News, 17 Nov. 2025
Some people should avoid oxymel, such as those with acid reflux or a stomach ulcer.
—Julia Ries Wexler, Health, 7 Nov. 2025
See All Example Sentences for ulcer
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Troy Renck, Denver Post, 24 Nov. 2025
In March, the Supreme Court of Louisiana rejected an attempt to declare the state's immunity law unconstitutional from a woman who developed pressure ulcers during a lengthy rehab hospital stay in early 2020.
—Madeline Heim, jsonline.com, 21 Nov. 2025
Foot ulcers can also be a complication caused by diabetes and are often overlooked.
—Christa Swanson, CBS News, 17 Nov. 2025
Some people should avoid oxymel, such as those with acid reflux or a stomach ulcer.
—Julia Ries Wexler, Health, 7 Nov. 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 27 Nov. 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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