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Dictionary

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

 

Hyponyms: iris, iris diaphragm

 

Part Meronyms: camera, photographic camera, electro-acoustic transducer, torso, trunk, body

 

 
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