Dictionary

pityriasis

noun pit·y·ri·a·sis \ˌpi-ti-ˈrī-ə-səs\

Definition of PITYRIASIS

:  any of various skin conditions of humans or domestic animals marked by dry scaling patches of skin
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Origin of PITYRIASIS

New Latin, from Greek, from pityron scurf
First Known Use: circa 1693
Medical Dictionary

pityriasis

noun pit·y·ri·a·sis \ˌpit-ə-ˈrī-ə-səs\
plural pit·y·ri·a·ses \-ˌsēz\

Medical Definition of PITYRIASIS

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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