- any of various skin diseases characterized by the shedding of scaly flakes of epidermis
- a skin disease of domestic animals, characterized by the formation of dry scales
Origin of pityriasisModern Latin from Classical Greek from pityrion, bran, scale
Any of various skin diseases of humans and animals, characterized by epidermal shedding of flaky scales.
Origin of pityriasisGreek pitūriāsis from pitūra grain husks, bran, dandruff perhaps from dissimilation of putūra ; see pau-2 in Indo-European roots. or akin to pitulos repetitive striking ; see pet- in Indo-European roots.