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


Pathology. any of various skin diseases marked by the shedding of branlike scales of epidermis.
Veterinary Pathology. a skin disease in various domestic animals marked by dry scales.

Origin of pityriasis

1685–95; < New Latin < Greek pitȳríāsis branlike eruption, equivalent to pítȳr(on) bran, scale + -iāsis -iasis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for pityriasis

British Dictionary definitions for pityriasis

/ (ˌpɪtəˈraɪəsɪs) /


any of a group of skin diseases characterized by the shedding of dry flakes of skin
a similar skin disease of certain domestic animals

Word Origin for pityriasis

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 Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for pityriasis

[ pĭt′ĭ-rīə-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.

Other words from pityriasis

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