diaphragm
Nouns
-
(n) a mechanical device in a camera that controls size of aperture of the lens
- the new cameras adjust the diaphragm automatically
- (n) (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration midriff,
- (n) 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 contraceptive diaphragm, pessary,
- (n) electro-acoustic transducer that vibrates to receive or produce sound waves