Lamellae is a term for several very different biological and material structures. It may mean:

[Lamellae (zoology), various gill-shaped structures found within the respiratory organs or bone or nacre of an animal. Lamellae mycology, the "gills" or leaf-shaped hymenophore structures beneath the pileus of an agaric. Lamellae (materials), various layered structures within geological, biological, or synthetic materials, for example mica and graphite.

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