English dictionary



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English noun: diaphragm

1. diaphragm (artifact) a mechanical device in a camera that controls size of aperture of the lens


SamplesThe new cameras adjust the diaphragm automatically.


Synonymsstop


Broader (hypernym)mechanical device


Narrower (hyponym)iris, iris diaphragm


Part meronymcamera, photographic camera

2. diaphragm (body) (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration


Synonymsmidriff


Broader (hypernym)membrane, muscle system, muscular structure, musculature, tissue layer


Part meronymbody, torso, trunk


Domain categoryanatomy, general anatomy

3. diaphragm (artifact) 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


Synonymscontraceptive diaphragm, pessary


Broader (hypernym)birth control device, contraceptive, contraceptive device, preventative, preventive, prophylactic device

4. diaphragm (artifact) electro-acoustic transducer that vibrates to receive or produce sound waves


Broader (hypernym)disc, disk


Part meronymelectro-acoustic transducer









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