Pityriasis
[pit-uh-rahy-uh-sis] /ˌpɪt əˈraɪ ə sɪs/
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.
/ˌpɪtəˈraɪəsɪs/
noun
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
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.
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pityriasis linguae pityriasis lin·guae (lĭng’gwē) n. See geographical tongue.
- Pityriasis rosea
pityriasis rosea pityriasis ro·se·a (rō’sē-ə, -zē-ə) n. A self-limited eruption of macules or papules involving principally the trunk and extremities.
- Pityriasis rubra
pityriasis rubra pityriasis ru·bra (rōō’brə) n. See exfoliative dermatitis.
- Pityriasis rubra pilaris
pityriasis rubra pilaris pityriasis rubra pi·lar·is (pĭ-lâr’ĭs) n. A chronic eruption of the hair follicles, which become firm, red, surmounted with horny plugs, and often form scaly patches.