pityriasis

American  

[pit-uh-rahy-uh-sis] / ˌpɪt əˈraɪ ə sɪs /

noun

1. Pathology. any of various skin diseases marked by the shedding of branlike scales of epidermis.

2. Veterinary Pathology. a skin disease in various domestic animals marked by dry scales.

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pityriasis British  

/ ˌpɪtəˈraɪəsɪs /

noun

1. any of a group of skin diseases characterized by the shedding of dry flakes of skin

2. a similar skin disease of certain domestic animals

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Etymology

Origin of pityriasis

1685–95; < New Latin < Greek pitȳríāsis branlike eruption, equivalent to pítȳr ( on ) bran, scale + -iāsis -iasis

Example Sentences

In 1924, a skin specialist at the University of Minnesota diagnosed her with pityriasis rubra pilaris, a chronic skin disease that had no significant treatment options or a cure at the time.

From Washington Times • Dec. 2, 2017

To what is pityriasis rosea to be attributed?

From Essentials of Diseases of the Skin Including the Syphilodermata Arranged in the Form of Questions and Answers Prepared Especially for Students of Medicine by Stelwagon, Henry Weightman

This is seen in its highest degree in itching diseases like prurigo and pityriasis.

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

What treatment is to be advised in pityriasis rosea?

From Essentials of Diseases of the Skin Including the Syphilodermata Arranged in the Form of Questions and Answers Prepared Especially for Students of Medicine by Stelwagon, Henry Weightman

In aged people this condition is the pityriasis nigra of Willan.

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