Refers to a membrane or partition that separates two spaces, commonly used in anatomy for the thoracic diaphragm, but also in broader contexts like engineering or biology.
The diaphragm is an important muscle for breathing.
A diaphragm is used in this device.
diaphragm
diaphragm process
pelvic diaphragm
From 隔 (separate) + 膜 (membrane). The exact historical derivation is uncertain, but the spelling is conventionally associated with the meaning of a separating membrane.