Diaphragms are used for a variety of purposes, from medical devices to musical instruments. Synonyms for diaphragms would depend on the specific context in which the word is being used, but some possibilities include: membranes, barriers, shields, partitions, walls, filters, screens, layers, shields, and dams. In anatomy, the diaphragm is a muscle that separates the thoracic and abdominal cavities, and other names for this muscle could include the thoracic diaphragm or simply the respiratory diaphragm. Other synonyms could include phragm, sacrums, screens, and pessaries, depending on the context of use.