| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| the offspring of a zebra and a donkey. |
exfoliation ex·fo·li·a·tion (ěks-fō'lē-ā'shən)
n.
Detachment and shedding of superficial cells of an epithelium or a tissue surface.
Scaling or desquamation of the horny layer of epidermis.
Loss of deciduous teeth following physiological loss of root structure.
Extrusion of permanent teeth as a result of disease or loss of opposing teeth.
| 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. |
exfoliation
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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