n., pl., -ses (-sēz').
Any of various skin diseases of humans and animals, characterized by epidermal shedding of flaky scales.
[Greek pitūriāsis, from pitūron, grain husk, dandruff.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
