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Lamella (materials)
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<p>A lamella (pl.: lamellae) is a small plate or flake, from the Latin, and may also refer to collections of fine sheets of material held adjacent to one another in a <a href="/facts/Gill/FWgM3Jp8">gill</a>-shaped structure, often with fluid in between though sometimes simply a set of "welded" plates. The term is used in <a href="/facts/Biology/1M1ee3pB">biological</a> contexts for thin membranes of plates of <a href="/facts/Tissue_(biology)/H7CpML7A">tissue</a>. In the context of <a href="/facts/Materials_science/N5HrXRYW">materials science</a>, the microscopic structures in <a href="/facts/Bone/kwJaR6IQ">bone</a> and <a href="/facts/Nacre/a5ek6xm4">nacre</a> are called lamellae. Moreover, the term lamella is often used to describe crystal structure of some materials. </p>