keratosis
noun
ker·a·to·sis
ˌker-ə-ˈtō-səs 
plural keratoses
ˌker-ə-ˈtō-ˌsēz
: an area of skin marked by overgrowth of horny tissue
Examples of keratosis in a Sentence
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Still, those bothered by rough, bumpy areas of keratosis pilaris — a harmless buildup of keratin typically found on the arms and legs — may find some benefit from light exfoliation in the shower, Lamb said.
—
Kameryn Griesser, CNN Money, 17 July 2025
There are several possible causes, including folliculitis, keratosis pilaris, contact dermatitis, boils, or traditional acne.
—Carrie Madormo, Health, 16 July 2025
The best keratosis pilaris treatment products, at a glance
This one ranked best overall for its elite combination of chemical and physical exfoliants (pumice puffing beads) that leave the skin exceptionally smooth and bright.
—Talia Abbas, Glamour, 23 June 2025
The brands’ shower gel aims to address a multitude of skin-care concerns—think: acne, keratosis pilaris, and flaky skin.
—Conçetta Ciarlo, Vogue, 4 June 2025
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Kameryn Griesser, CNN Money, 17 July 2025
There are several possible causes, including folliculitis, keratosis pilaris, contact dermatitis, boils, or traditional acne.
—Carrie Madormo, Health, 16 July 2025
The best keratosis pilaris treatment products, at a glance
This one ranked best overall for its elite combination of chemical and physical exfoliants (pumice puffing beads) that leave the skin exceptionally smooth and bright.
—Talia Abbas, Glamour, 23 June 2025
The brands’ shower gel aims to address a multitude of skin-care concerns—think: acne, keratosis pilaris, and flaky skin.
—Conçetta Ciarlo, Vogue, 4 June 2025
See All Example Sentences for keratosis
Cite this Entry
“Keratosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/keratosis. Accessed 29 Jul. 2025.
Copy CitationMedical Definition
keratosis
noun
ker·a·to·sis
ˌker-ə-ˈtō-səs
plural keratoses
-ˌsēz
1
: a disease of the skin marked by overgrowth of horny tissue
2
: an area of the skin affected with keratosis
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