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    diaphragm - Dictionary definition and meaning for word diaphragm

    (noun) a mechanical device in a camera that controls size of aperture of the lens
    Synonyms : stop
    Example Sentence
    • the new cameras adjust the diaphragm automatically
    (noun) (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration
    Synonyms : midriff
    (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 Definition
    (noun) electro-acoustic transducer that vibrates to receive or produce sound waves
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