diaphragm

diaphragm n.

[解] 橫隔膜, 控光裝置, 照相機鏡頭上的光圈, (電話等)振動膜

英英解釋:名詞diaphragm:
1. a mechanical device in a camera that controls size of aperture of the lens
同義詞：stop
2. (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration
同義詞：midriff
3. 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
同義詞：pessary, contraceptive diaphragm
4. electro-acoustic transducer that vibrates to receive or produce sound waves