English dictionary
diaphragm
nounPronunciation
ˈdaɪəˌfɹæm
Parts of speech
Definitions
noun
- a mechanical device in a camera that controls size of aperture of the lens
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
noun
- (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration
Example sentences
the new cameras adjust the diaphragm automatically
