Akademik

1. noun /ˈdaɪəˌfræm/

a) In mammals, a sheet of muscle separating the thorax from the abdomen, contracted and relaxed in respiration to draw air into and expel air from the lungs; also called thoracic diaphragm.

b) Any of various membranes or sheets of muscle or ligament which separate one cavity from another.

2. verb /ˈdaɪəˌfræm/

a) To reduce lens aperture using an optical diaphragm.

b) To act as a diaphragm, for example by vibrating.