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exfoliation |
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exfoliation [eks‚fō·lē′ā·shən]
(geology) (medicine) The separation of bone or other tissue in thin layers. A peeling and shedding of the horny layer of the skin. (metallurgy) Peeling off or separation of metal at its surface in the form of thin, parallel scales or lamellae. (petrology) The breaking off of thin concentric shells, sheets, scales, plates, and so on, from a rock mass; measuring less than a centimeter to several meters in thickness, the loosened rock is spalled, peeled, or stripped. (science and technology) Flaking away or peeling off in scales. exfoliation Peeling, swelling, or scaling of stone or mineral surfaces in thin layers; caused by chemical or physical weathering or by heat. Minerals such as vermiculite expand to many times their original size when heat-treated. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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