DIAPHRAGM

• (noun) a mechanical device in a camera that controls size of aperture of the lens

  "the new cameras adjust the diaphragm automatically"

  synonyms : stop

• (noun) electro-acoustic transducer that vibrates to receive or produce sound waves

• (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

  synonyms : contraceptive diaphragm , pessary

• (noun) (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration

  synonyms : midriff

WordNet® 3.0, © 2006 by Princeton University.

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