(anatomy) 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.

(optics, photography) To reduce lens aperture using an optical diaphragm. / To act as a diaphragm, for example by vibrating.

plural of diaphragm

Which uses, or is located in or near, the diaphragm.

simple past tense and past participle of diaphragm

present participle of diaphragm

Of or relating to the diaphragm.

(rare) Inflammation of the diaphragm.

(civil engineering) A structure inserted in the ground and used to maintain an excavation open or to isolate portions of contaminated ground. It can be built of any material from steel to reinforced concrete.

plural of diaphragm wall