Diaphragm - definition, pronunciation, transcription

Amer.  |ˈdaɪəfræm|  American pronunciation of the word diaphragm
Brit.  |ˈdʌɪəfram|  British pronunciation of the word diaphragm

noun

- a mechanical device in a camera that controls size of aperture of the lens(syn: stop)

the new cameras adjust the diaphragm automatically

- (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration (syn: midriff)
- 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 (syn: pessary)
- electro-acoustic transducer that vibrates to receive or produce sound waves

Examples

the new cameras adjust the diaphragm automatically

Word forms

noun
singular: diaphragm
plural: diaphragms
See also:  WebsterWiktionaryLongman