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pityriasis

[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.
Origin
1685-1695
1685-95; < Neo-Latin < Greek pitȳríāsis branlike eruption, equivalent to pítȳr(on) bran, scale + -iāsis -iasis
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for pityriases

pityriasis

/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
Word Origin
C17: via New Latin from Greek pituriasis scurfiness, from pituron bran
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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pityriases in Medicine

pityriasis pit·y·ri·a·sis (pĭt'ĭ-rī'ə-sĭs)
n. pl. pit·y·ri·a·ses (-sēz')
Any of various skin diseases of humans and animals, characterized by epidermal shedding of flaky scales.


pit'y·ri'a·sic (-sĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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