pityriasis
noun
pit·y·ri·a·sis
ˌpi-ti-ˈrī-ə-səs 
: any of various skin conditions of humans or domestic animals marked by dry scaling patches of skin
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“Pityriasis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pityriasis. Accessed 20 Apr. 2025.
Copy CitationMedical Definition
pityriasis
noun
pit·y·ri·a·sis
ˌpit-ə-ˈrī-ə-səs
plural pityriases
-ˌsēz
1
: any of several skin diseases marked by the formation and desquamation of fine scales
2
: a disease of domestic animals marked by dry epithelial scales or scurf due to alteration of the function of the sebaceous glands and possibly associated with digestive disorders
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