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1A dome-shaped muscular partition separating the thorax from the abdomen in mammals. It plays a major role in breathing, as its contraction increases the volume of the thorax and so inflates the lungs.
- ‘The programme works by encouraging sufferers to use the costal diaphragm, which most people only use for singing.’
- ‘Now she is learning to use her diaphragm too, as in yoga breathing.’
- ‘The largest internal organ in the body, the liver is located in the upper right portion of the abdomen, beneath the diaphragm and above most of the stomach, intestines and pancreas.’
- ‘The bottom of your heart sits just above the diaphragm and your lungs surround the heart on the sides.’
- ‘Separating the chest from the abdomen, the diaphragm (pronounced: die-uh-fram) plays a lead role in breathing.’
- ‘Sometimes an abscess may burst upwards through the diaphragm into the lung and the contents can be coughed up.’
- ‘The diaphragm and lungs are above it; the colon and intestines are below it; and the kidneys are behind it.’
- ‘Normal breathing is a two-step process starting with contractions of the diaphragm creating a vacuum in the lungs.’
- ‘Contraction of the expiratory muscles displaces the abdomen inward and the diaphragm upward into the thorax during exhalation.’
- ‘This section includes portions of the lungs located in the recesses between the dome-shaped diaphragm and body wall.’
- ‘The diaphragm is a muscle that separates the chest from the stomach organs.’
- ‘We hypothesized that the diaphragms of such patients might generate greater levels of oxidants than those neutralized by antioxidants.’
- ‘Focus on your diaphragm muscle, you can tell a moment before it spasms.’
- ‘And ultimately, they die from the diaphragm contracting to such an extent that they asphyxiate or suffocate to death.’
- ‘Pleural effusions can also be located between the lung and the diaphragm.’
- ‘In this type of hernia, part of the stomach pokes through the diaphragm, the main breathing muscle under the lungs.’
- ‘Hiccups are a sudden, involuntary squeezing of the diaphragm, the main breathing muscle under the lungs.’
- ‘Metastatic tumor was also found in the thyroid gland, pericardium, myocardium, bilateral lungs, diaphragm, bilateral kidneys, and liver.’
- ‘Functioning of the diaphragm and thoracic musculature may be diminished, contributing to respiratory compromise.’
- ‘It is also possible that the close proximity between the infected lung and the diaphragm contributed to the preferential impairment of diaphragmatic contractility.’
2A thin sheet of material forming a partition.
- ‘In this way the stalk expands radially to form a hemifusion diaphragm.’
- ‘New growth cycles began with the formation of new basal diaphragms and lateral walls of living chambers.’
- ‘The trans layers make contact and produce an axially symmetric hemifusion diaphragm.’
- 2.1 A taut flexible membrane in mechanical or acoustic systems.
- ‘The backing assembly is positioned in the head, and the backing assembly can include a plate in the chamber and a diaphragm on one side of the plate.’
- ‘For a condenser mic, the principle components are the diaphragm, air and backplate.’
- ‘All his recordings were made using the ‘acoustic method’ - singing in front of a large horn, connected to a recording diaphragm and cutting stylus, which cut a groove in a rotating wax disc.’
- ‘The ear canal is closed at its inner end by a thin diaphragm of stretched skin known as the eardrum or tympanic membrane, which vibrates as the air pressure changes.’
- ‘The diaphragm is a flexible disk made of sheet metal with ridges carved into it.’
- ‘A flat glass plate closes the cylinder on the oil side, whereas a truncated glass sphere mounted on a thin metal diaphragm closes the side of the salt solution.’
- ‘The diaphragm is acted upon by a predetermined reference pressure within a reference chamber 90 of the control valve.’
- ‘Shoring was removed as final welds and structural diaphragms were added to ensure that the primary structural system performed as intended.’
- ‘Working independently, Gray and Bell both developed systems based on electromagnetic receivers with steel diaphragms.’
- ‘When such a wave impinges on a microphone diaphragm, its motion assumes that of the adjoining medium.’
- ‘Brunelleschi's brickwork masonry envelope has an ‘improved’ cross-section and consists of inner and outer skins linked by diaphragms.’
- ‘Do you really need another 1-inch diaphragm condenser mic for vocals, acoustic guitar, drum overheads, horns or piano?’
- ‘The diaphragm is the component that needs the most attention, as it hardens with age and could rupture.’
- ‘Those vibrations correspond to the sound pressure on the diaphragm and create the audio signal which is recorded.’
- ‘A flexible diaphragm extends over at least a portion of the oil reservoir, and a seal is secured to the diaphragm.’
- ‘Between the barrel and the air chamber is a thin plastic diaphragm, which isolates the sabot from the high pressure air until shot time.’
- ‘A resonant frequency Fv2 of the rear space is set at a value in the range: F0 of the diaphragm, and Fv1 is a resonant frequency of the front space.’
- ‘A diaphragm extends around the shaft and defines fluidly separate upper and lower chambers within a valve body.’
- ‘A dynamic microphone's diaphragm, for instance, moves an attached coil of wire past a magnet to induce current flow in the wire. See diagram.’
- ‘The flexible metal diaphragm provides expansion capability to partially compensate for thermal expansion mismatch between the liquids and the cylinder.’
3A thin contraceptive cap fitting over the cervix.
- ‘It should not be used with condoms or a diaphragm since petroleum jelly degrades latex.’
- ‘Find out from this factsheet by the fpa how contraceptive diaphragms and caps work, how effective they are at preventing pregnancy and their advantages and disadvantages.’
- ‘For example, to dramatically lower your odds of getting cervical cancer, don't smoke, get regular Pap tests, limit sex partners and use condoms or a diaphragm.’
- ‘There is no official magisterial teaching either about condoms, or about anti-ovulatory pills or diaphragms.’
- ‘Heavier women should switch to a higher-dose oral contraceptive, he says, or use a backup method such as a diaphragm or condom if they want to remain on the low-dose pill.’
- ‘Barrier methods of contraception include diaphragms, condoms and cervical caps.’
- ‘Today she says they will be using a condom, diaphragm, Norplant, foam, and the Pill.’
- ‘Barrier methods include condoms, the diaphragm, the sponge, and the cervical cap.’
- ‘Following his logic, we would have to say that Catholics who insist on using contraceptives should opt for condoms or diaphragms.’
- ‘In the Catholic pre-wedding group talk I attended, we were told that contraceptive pills make you infertile, diaphragms and IUDs are abortions and the rhythm method is the only way to family plan.’
- ‘This compares with 11 percent for the condom, 17 percent for the diaphragm and about 1 percent for hormonal birth control such as the pill.’
- ‘She has happily used a contraceptive diaphragm for the past 20 years.’
- ‘The fitting diaphragm can then be sold to the patient and the clinic stock replenished, or the patient can be sent to the pharmacy to order the correct size.’
- ‘In addition to a diaphragm, use a condom to protect against STDs.’
- ‘In the initial phases of family planning in India, emphasis was given to user-friendly contraceptives such as diaphragms and jellies that the woman could discontinue.’
- ‘A diaphragm and condoms are good choices if you want methods that can be applied right before sex.’
- ‘Contraception consisted of a diaphragm with spermacidal gel.’
- ‘Inserting a diaphragm or cap in can interrupt sex if you don't do it beforehand.’
- ‘Some methods such as the condom and diaphragm can be stopped immediately.’
- ‘The Pill, condoms (female and male), diaphragms, and sponges also have failure rates and are very dependant on proper use; if any of these are used incorrectly the chances of pregnancy dramatically increase.’
4A device for varying the effective aperture of the lens in a camera or other optical system.
- ‘If you know how the combination of a shutter, a lens, a diaphragm, and a light meter can make a picture.’
- ‘In experiments to find the effect of lens diameter he invented the familiar iris diaphragm.’
- ‘The diaphragm device adjusts an exposure time by controlling incident luminous flux to the photographing element and an electric charge storage time of the photographing element.’
- ‘Photographs were taken using a Nikon SMZ-U stereomicroscope with the diaphragm half open.’
- ‘From the images above you can clearly see the lenses are identical even down to the aperture diaphragm, which begs the question is the lens in the PhotoPC 3000Z a Carl Zeiss design?’
- ‘A 60X or 40X Nikon objective was used to photobleach an area in the membrane while closing down the field diaphragm of the microscope to its minimum size.’
- ‘He suggests that a diaphragm may be placed over the lens to restrict the aperture, and so increase the depth of field - although this reduces brightness.’
- ‘It is not much unlike a conventional camera in the conception of design, consisting of a lens and a diaphragm that adjust the focus and control the amount of light coming through.’
Late Middle English: from late Latin diaphragma, from Greek, from dia ‘through, apart’ + phragma ‘a fence’.
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