diaphragm, stop -- (a mechanical device in a camera that controls size of aperture of the lens; "the new cameras adjust the diaphragm automatically")
diaphragm, midriff -- ((anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration)
diaphragm, pessary, contraceptive diaphragm -- (a contraceptive device consisting of a flexible dome-shaped cup made of rubber or plastic; it is filled with spermicide and fitted over the uterine cervix)
diaphragm -- (electro-acoustic transducer that vibrates to receive or produce sound waves)
(Sound)
