English dictionary

diaphragm

noun

Pronunciation

ˈdaɪəˌfɹæm

Parts of speech

Definitions

noun

  1. a mechanical device in a camera that controls size of aperture of the lens

noun

  1. electro-acoustic transducer that vibrates to receive or produce sound waves

noun

  1. 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

noun

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

Example sentences

the new cameras adjust the diaphragm automatically

Synonyms

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