pityriasis

[pit-uh-rahy-uh-sis]

pit·y·ri·a·sis

[pit-uh-rahy-uh-sis]
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:
1685–95; < Neo-Latin < Greek pitȳríāsis branlike eruption, equivalent to pítȳr(on) bran, scale + -iāsis -iasis
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Pityriasis has a plethora of syllables.
So is floccinaucinihilipilification. Does it mean:
the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language.
Collins
World English Dictionary
pityriasis (ˌpɪtəˈraɪəsɪs)
 
n
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
 
[C17: via New Latin from Greek pituriasis scurfiness, from pituron bran]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

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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