First Known Use: circa 1693
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
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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