DIAPHRAGM

Definition of DIAPHRAGM

  1. (noun)a mechanical device in a camera that controls size of aperture of the lens
  2. (noun)(anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration
  3. (noun)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)electro-acoustic transducer that vibrates to receive or produce sound waves