diaphragm /ˈdajəˌfræm/ noun plural diaphragms
plural diaphragms
Learner's definition of DIAPHRAGM
[count]
1
medical : a large flat muscle that separates the lungs from the stomach area and that is used in breathing膈,膈膜,横膈膜(分隔胸腔和腹腔的肌肉) — see picture at human 2
technical : a device that controls the amount of light passing through the lens of a camera(照相机的)光圈
3
: a device shaped like a cup that is placed in the vagina to prevent pregnancy(避孕用的)子宫帽 — called also (British) cap
4
technical : a thin disk that is used in microphones, telephones, speakers, etc., to help reproduce sound or make sounds louder(麦克风、电话、扬声器等的)膜片,膜件,振动膜