first used by Christopher Chantler and refers to a very thin layer of a perfect crystal, from which curved crystal physics may be derived. In textile industry, a lamella is a thin metallic strip used alone or wound around a core thread for goldwork embroidery and tapestry weaving. In September 2010, the U.S. Food and Drug Administration (FDA) announced a recall of two medications which contained "extremely thin glass flakes (lamellae) that are barely visible in most cases. The lamellae result from the interaction of the formulation with glass vials over the shelf life of the product." See also Lamella (cell biology) Middle lamella Annulate lamella Lamella (structure) References Materials science