The term 'arranged in layers' can be described by two crossword solutions: 'tiered' and 'laminar'. Tiered is a 6-letter word meaning 'arranged in tiers or levels, one above the other'. Laminar is a 7-letter word meaning 'arranged in thin layers, one on top of the other'. Both words refer to the arrangement of objects in layers, with one layer on top of the other. This arrangement is often used in architecture, engineering, and other fields.