| 单词 | diaphragm |
| 释义 | diaphragm (once / 3946 pages) n Ever had the hiccups? Then you're familiar with your diaphragm, the large muscle that stretches across your midriff to support your lungs and help you breathe. When you get the hiccups, your diaphragm spasms uncontrollably. The Greek word diáphragma referred to the body's midriff and came from the root phrágma, meaning "fence." This led to the Middle English diafragma, also referring to the muscular stretch below the lungs. The idea of a diaphragm as a contraceptive first surfaced in 1933. A diaphragm is also the part of the camera called a "stop," which adjusts the amount of light, and it is a thin, vibrating disc used in electronics to transfer sound. WORD FAMILYdiaphragm: diaphragms USAGE EXAMPLESIt exercises the diaphragm, reduces anxiety and could help with shortness of breath and clearing phlegm from the lungs. Wall Street Journal(Oct 31, 2016) The bullet passed through his lower back, breaking ribs, hitting his liver, gall bladder, spleen, diaphragm and right lung before exiting his upper chest. BBC(Oct 28, 2016) Her consciousness raises through the roof once she discovers that he’s pricked a hole in her diaphragm so she’ll get pregnant. Washington Post(Oct 27, 2016) 1n (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration Syn|Hyper midriff membrane, tissue layer a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants muscle system, muscular structure, musculaturethe muscular system of an organism 2n a mechanical device in a camera that controls size of aperture of the lens the new cameras adjust the diaphragm automatically Syn|Hypo|Hyper stop iris, iris diaphragm diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening mechanical device mechanism consisting of a device that works on mechanical principles 3n 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|Hyper contraceptive diaphragm, pessary birth control device, contraceptive, contraceptive device, preventative, preventive, prophylactic device an agent or device intended to prevent conception 4n electro-acoustic transducer that vibrates to receive or produce sound waves Hyper disc, disk a flat circular plate |
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