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Showing results for keratosis. Search instead for dyskeratosis.

keratosis

American  
[ker-uh-toh-sis] / ˌkɛr əˈtoʊ sɪs /

noun

Pathology.
  • keratoses
    plural
  1. any horny growth of keratin on the skin, as a wart.

  2. any horny growth of keratin elsewhere, as on the tonsils.


keratosis British  
/ ˌkɛrəˈtəʊsɪs /

noun

  1. any skin condition marked by a horny growth, such as a wart

  2. a horny growth

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of keratosis

First recorded in 1880–85; kerat- + -osis

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Kelley credits the routine with getting rid of the keratosis pilaris bumps on her arms.

From The Wall Street Journal Sep. 11, 2026

Q: Is there a natural way to get rid of seborrheic keratosis?

From Seattle Times Sep. 14, 2022

“It’s a noncancerous seborrheic keratosis, but our guy has to wait six weeks for a doctor’s appointment and spends that time moping around, wishing he’d stopped to smell the roses more often.”

From Washington Post Mar. 20, 2022

For conditions like keratosis pilaris—which consist of “plugs” of cells in hair follicles, often on the upper arms and thighs—exfoliation is key here, too.

From Slate Jul. 24, 2018

Contagious follicular keratosis is an extremely rare affection in which there are peculiar, spine-like outgrowths, consisting in exudations of the mouths of the sebaceous glands.

From Anomalies and Curiosities of Medicine by Walter L. (Walter Lytle) Pyle

Seborrheic keratoses are benign skin growths sometimes referred to as barnacles.

From Seattle Times Feb. 22, 2023

A: Seborrheic keratoses are tan, brown or black skin growths that may be rough.

From Seattle Times Sep. 14, 2022

Ms. Rought said it was not unusual for a skin check to lead her to to freeze as many as 30 precancerous lesions called actinic keratoses on a patient during a single visit.

From New York Times Nov. 20, 2017

There were nevi and keratoses, but no melanomas or carcinomas.

From The New Yorker Mar. 27, 2017

Squamous-cell carcinomas also develop from keratoses on long-exposed areas of the skin, affecting about 100,000 Americans each year.

From Time Magazine Archive

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