the act, state, or process of exfoliating.
the state of being exfoliated.
something that is exfoliated or scaled off.

1670–80; Neo-Latin exfoliātiōn- (stem of exfoliātiō). See exfoliate, -ion

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World English Dictionary
exfoliate (ɛksˈfəʊlɪˌeɪt)
1.  (tr) to wash (a part of the body) with a granular cosmetic preparation in order to remove dead cells from the skin's surface
2.  (of bark, skin, etc) to peel off in (layers, flakes, or scales)
3.  (intr) (of rocks or minerals) to shed the thin outermost layer because of weathering or heating
4.  (of some minerals, esp mica) to split or cause to split into thin flakes: a factory to exfoliate vermiculite
[C17: from Late Latin exfoliāre to strip off leaves, from Latin folium leaf]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

exfoliation ex·fo·li·a·tion (ěks-fō'lē-ā'shən)

  1. Detachment and shedding of superficial cells of an epithelium or a tissue surface.

  2. Scaling or desquamation of the horny layer of epidermis.

  3. Loss of deciduous teeth following physiological loss of root structure.

  4. Extrusion of permanent teeth as a result of disease or loss of opposing teeth.

ex·fo'li·ate' v.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
exfoliation   (ěks-fō'lē-ā'shən)  Pronunciation Key 
The process in which layers of tissue peel or are peeled off an organism, such as the distinctive ways in which bark peels off a tree in strips or flakes.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica


separation of successive thin shells, or spalls, from massive rock such as granite or basalt; it is common in regions that have moderate rainfall. The thickness of individual sheet or plate may be from a few millimetres to a few metres.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences for exfoliation
Human skin is also subjected to abrasion in the form of exfoliation.
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