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What does diaphragm mean?

April 26, 2017context examples definition diaphragm dictionary english learning mean sense study synonyms

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What does diaphragm mean?

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• DIAPHRAGM (noun) The noun DIAPHRAGM has 4 senses: 1. a mechanical device in a camera that controls size of aperture of the lens 2. (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration 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. electro-acoustic transducer that vibrates to receive or produce sound waves Familiarity information: DIAPHRAGM used as a noun is uncommon.