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
The devices are also used to treat a variety of other health problems, including carbon monoxide poisoning, diabetic foot ulcers, cerebral palsy, anemia, infection of the skin and bone, as well as vision loss.
—
Michael Dorgan, Fox News, 31 Jan. 2025
Other recent human clinical studies show that photobiomodulation helps heal diabetic and burn wounds, as well as some types of ulcers.
—Praveen Arany, The Conversation, 24 Jan. 2025
Recurrent ulcers can increase the risk of bleeding, or a blockage or a hole forming in the stomach or small intestine.
—Alice Callahan, New York Times, 22 Jan. 2025
The dog had severe burns, ulcers in her eyes and red, swollen gums from smoke inhalation.
—Hailey Branson-Potts, Los Angeles Times, 17 Jan. 2025
See all Example Sentences for ulcer 
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Michael Dorgan, Fox News, 31 Jan. 2025
Other recent human clinical studies show that photobiomodulation helps heal diabetic and burn wounds, as well as some types of ulcers.
—Praveen Arany, The Conversation, 24 Jan. 2025
Recurrent ulcers can increase the risk of bleeding, or a blockage or a hole forming in the stomach or small intestine.
—Alice Callahan, New York Times, 22 Jan. 2025
The dog had severe burns, ulcers in her eyes and red, swollen gums from smoke inhalation.
—Hailey Branson-Potts, Los Angeles Times, 17 Jan. 2025
See all Example Sentences for ulcer
Dictionary Entries Near ulcer
Cite this Entry
“Ulcer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ulcer. Accessed 9 Feb. 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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