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Word: diaphragm
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Meaning:
Noun:
- A contraceptive device consisting of a flexible cup, used to cover the cervix during intercourse.
- acoustics In a speaker, the thin, semi-rigid membrane which vibrates to produce sound.
- anatomy Any of various membranes or sheets of muscle or ligament which separate one cavity from another.
- anatomy In mammals, a sheet of muscle separating the thorax from the abdomen, contracted and relaxed in respiration to draw air into and expel air from the lungs; also called thoracic diaphragm.
- chemistry A permeable or semipermeable membrane
- construction A floor slab, metal wall panel, roof panel or the like, havig a sufficiently large in-plane shear stiffness and sufficient strength to transmit horizontal forces to resisting systems.
- mechanics A flexible membrane separating two chambers and fixed around its periphery that distends into one or other chamber depending on the as the difference in the pressure in the chambers varies.
- photography A thin opaque structure with a central aperture, used to limit the passage of light into a camera or similar device.
Source: Wiktionary
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Verb:
- photography To reduce lens aperture using an optical diaphragm.
- To act as a diaphragm, for example by vibrating.
Source: Wiktionary
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