exfoliation

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exfoliation

 [eks-fo″le-a´shun]
1. a falling off in scales or layers.
2. the normal loss of primary teeth after loss of their root structure. adj., adj exfo´liative.
lamellar exfoliation of newborn a congenital hereditary disorder in which the infant is born covered with a collodionlike or parchmentlike membrane that peels off within 24 hours, after which there may be complete healing, or the scales may reform and the process may be repeated. In the more severe form, the infant (harlequin fetus) is covered with thick, horny, armorlike scales and usually either is stillborn or dies shortly after birth. Called also ichthyosis congenita and lamellar ichthyosis of newborn.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ex·fo·li·a·tion

(eks'fō-lē-ā'shŭn),
1. Detachment and shedding of superficial cells of an epithelium or from any tissue surface.
2. Scaling or desquamation of the horny layer of epidermis, which varies in amount from minute quantities to shedding the entire integument.
3. Loss of deciduous teeth following physiologic loss of root structure.
[Mod. L. fr. L. ex, out, + folium, leaf]
Farlex Partner Medical Dictionary © Farlex 2012

ex·fo·li·a·tion

(eks-fō'lē-ā'shŭn)
1. Detachment and shedding of superficial cells from any tissue surface.
2. Scaling or desquamation of the horny layer of epidermis.
3. Loss of deciduous teeth following physiologic loss of root structure.
[Mod. L. fr. L. ex, out, + folium, leaf]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

exfoliation

Shedding of cells from a surface, such as the skin. In exfoliative dermatitis, much of the surface of the skin peels off or is shed.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

ex·fo·li·a·tion

(eks-fō'lē-ā'shŭn)
1. Loss of deciduous teeth following physiologic loss of root structure.
2. Detachment and shedding of superficial cells of an epithelium or from any tissue surface.
3. Scaling or desquamation of the horny layer of epidermis.
[Mod. L. fr. L. ex, out, + folium, leaf]
Medical Dictionary for the Dental Professions © Farlex 2012