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WordNet-Online
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Noun diaphragm has 4 senses
- diaphragm, stop - a mechanical device in a camera that controls size of aperture of the lens; "the new cameras adjust the diaphragm automatically"
--1 is a kind of mechanical device
--1 is a part of camera, photographic camera
--1 has particulars: iris, iris diaphragm
- diaphragm, midriff - (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration
--2 is a kind of muscular structure, musculature, muscle system; membrane, tissue layer
--2 is a part of torso, trunk, body
- 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
--3 is a kind of contraceptive, preventive, preventative, contraceptive device, prophylactic device, birth control device
- diaphragm - electro-acoustic transducer that vibrates to receive or produce sound waves
--4 is a kind of disk, disc
--4 is a part of electro-acoustic transducer
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