LAM'INA, n. [L. lamina.] 1. A thin plate or scale; a layer or coat lying over another; applied to the plates of minerals, bones, &c.2. A bone, or part of a bone, resembling a thin plate, such as the cribriform plate of the ethmoid bone.3. The lap of the ear.4. The border, or the upper, broad or spreading part of the petal, in a polypetalous corol.
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