A thin layer or PLATE is a flat sheet of material that is usually very thin in comparison to its length and width. The two crossword solutions for this term are 'Lamella' (7 letters) and 'LAMINA' (6 letters). Both words refer to a thin layer or PLATE, but they have slightly different meanings. Lamella is derived from the Latin word for 'PLATE' and is used to describe a thin layer of material that is part of a larger structure, such as a cell wall. LAMINA, on the other hand, is derived from the Latin word for 'BLADE' and is used to describe a thin sheet of material that is separate from any other structure.