from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various skin diseases of humans and animals, characterized by epidermal shedding of flaky scales.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of several varieties of skin diseases characterized by the shedding of flakes or scales
from the GNU version of the Collaborative International Dictionary of English
- n. A superficial affection of the skin, characterized by irregular patches of thin scales which are shed in branlike particles.
- n. A disease of domestic animals characterized by dry epithelial scales, and due to digestive disturbances and alteration of the function of the sebaceous glands.
from The Century Dictionary and Cyclopedia
- n. In pathology, a condition of the skin or some portion of it in which it sheds more or less fine bran-like scales.
- n. In ornithology, a genus of piping-crows of the family Corvidæ, founded by Lesson in 1837. The only species, P. gymnocephalus, inhabits Borneo and Sumatra.
- n. A scaly eczema. Also called eczema squamosum and psoriasis diffusa.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any of several skin disorders characterized by shedding dry flakes of skin
Greek pitūriāsis, from pitūron, grain husk, dandruff.(American Heritage® Dictionary of the English Language, Fourth Edition)