| Definitions of 'diaphragm' |
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1. (noun) diaphragm, stop
a mechanical device in a camera that controls size of aperture of the lens
"the new cameras adjust the diaphragm automatically"
2. (noun) diaphragm, midriff
(anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration
3. (noun) 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
4. (noun) diaphragm
electro-acoustic transducer that vibrates to receive or produce sound waves
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Definition of 'diaphragm' 
