rosacea
noun
ro·sa·cea
rō-ˈzā-sh(ē-)ə 
: a chronic inflammatory skin disorder typically involving the nose, forehead, and chin that is characterized especially by redness, flushing, telangiectasia, inflamed lesions, and burning sensation, and sometimes by eye dryness and irritation and thickening of tissues especially of the nose
called also acne rosacea
Examples of rosacea in a Sentence
Recent Examples on the Web
Unlike topical creams or antibiotics, which made up the bulk of rosacea treatments for midlife women, EMROSI works by targeting bumps and redness by releasing a low dose of the medicine throughout the course of a day.
—
Helen Carefoot, Flow Space, 23 Dec. 2025
The difference was immediate, like erasing rosacea with a magic wand.
—Conçetta Ciarlo, Vogue, 21 Dec. 2025
Being half the price of its closest competitors, the NVBOTY LED Face Mask also wins major points with its four-wavelength technology (options include inflammation-reducing infrared, red, blue, and orange light, with the latter targeting skin conditions like rosacea).
—Stacia Datskovska, Footwear News, 12 Dec. 2025
Some inject it into the scalp to help regrow hair or under the skin to treat inflammatory conditions, like rosacea and melasma, as well as acne scarring.
—Jolene Edgar, Allure, 11 Dec. 2025
See All Example Sentences for rosacea
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Helen Carefoot, Flow Space, 23 Dec. 2025
The difference was immediate, like erasing rosacea with a magic wand.
—Conçetta Ciarlo, Vogue, 21 Dec. 2025
Being half the price of its closest competitors, the NVBOTY LED Face Mask also wins major points with its four-wavelength technology (options include inflammation-reducing infrared, red, blue, and orange light, with the latter targeting skin conditions like rosacea).
—Stacia Datskovska, Footwear News, 12 Dec. 2025
Some inject it into the scalp to help regrow hair or under the skin to treat inflammatory conditions, like rosacea and melasma, as well as acne scarring.
—Jolene Edgar, Allure, 11 Dec. 2025
See All Example Sentences for rosacea
Cite this Entry
“Rosacea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rosacea. Accessed 28 Dec. 2025.
Copy CitationMedical Definition
rosacea
noun
ro·sa·cea
rō-ˈzā-sh(ē-)ə
: a chronic inflammatory skin disorder typically involving the nose, cheeks, forehead, and chin that is characterized especially by redness, flushing, telangiectasia, inflamed lesions, burning sensation, and sometimes eye dryness and irritation and thickening of tissues especially of the nose
called also acne rosacea
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