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diaphragm
diaphragm
The Oxford Pocket Dictionary of Current English
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2009
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© The Oxford Pocket Dictionary of Current English 2009, originally published by Oxford University Press 2009. (Hide copyright information)
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di·a·phragm
/ ˈdīəˌfram/
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n.
1.
a 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.
2.
a thin sheet of material forming a partition.
∎
a taut, flexible membrane in mechanical or acoustic systems.
∎
a thin contraceptive cap fitting over the cervix.
3.
a device for varying the effective aperture of the lens in a camera or other optical system.
DERIVATIVES:
di·a·phrag·mat·ic
/ ˌdīəfragˈmatik/ adj.
ORIGIN: late Middle English: from late Latin diaphragma, from Greek, from dia ‘through, apart’ + phragma ‘a fence.’
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Diaphragm adaptations in patients with COPD.(Review)
Magazine article from: Respiratory Research; 1/24/2008; ; 700+ words
; ...inspiratory muscle weakness in COPD has focused on the diaphragm, mainly because the diaphragm is the principle muscle of inspiration. Patients...has been ascribed to hyperinflation-induced diaphragm shortening, placing the diaphragm at a mechanical...
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Diaphragm pumps eliminate seal problems.(Cover Story)
Magazine article from: Plant Engineering; 2/1/1996; ; 700+ words
; ...diaphragm pump technology Diaphragm pumps employ a flexible diaphragm, which oscillates in a shallow...plunger or shaft seals to leak, diaphragms are excellent choices for...ILLUSTRATION FOR FIGURE 1 OMITTED]. Diaphragm pumps are best used for low...
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Selecting diaphragm seals for gauges and switches.
Magazine article from: Plant Engineering; 5/1/1998; ; 700+ words
; ...expands, a high spring rate diaphragm allows greater internal pressure...instrument than a low spring rate diaphragm would. Large diameter diaphragms with low spring rates induce...subjected to temperature changes. Diaphragm displacement curves show the...
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Diaphragm pumps move tough fluids.
Magazine article from: Plant Engineering; 11/10/1988; ; 700+ words
; ...thick sludges can all be pumped with versatile diaphragm pumps Mechanically actuated diaphragm pumps are very simple in design. A pump chamber...outlet check valve, and then covered with a diaphragm material that is connected to a rod, Fig...
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Diaphragm morphology at postmortem in people with acute and chronic respiratory disease.(Clinical report)
Magazine article from: Cardiopulmonary Physical Therapy Journal; 6/1/2007; ; 700+ words
; ...purpose of this study was to quantify diaphragm muscle cell morphology, fiber size...disease (NRD) post-mortem. Methods: Diaphragm biopsies and medical charts were examined...10 had ARD/CRD, and 8 had NRD. Diaphragm cross-sections, stained with hemotoxylin...
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Diaphragm Morphology at Postmortem in People with Acute and Chronic Respiratory Disease
Magazine article from: Cardiopulmonary Physical Therapy Journal; 6/1/2007; ; 700+ words
; ...purpose of this study was to quantify diaphragm muscle cell morphology, fiber size...disease (NRD) post-mortem. Methods: Diaphragm biopsies and medical charts were examined...10 had ARD/CRD, and 8 had NRD. Diaphragm cross-sections, stained with hemotoxylin...
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Will diaphragms protect against STIs?(sexually transmitted infections)
Magazine article from: Network; 6/22/2003; ; 700+ words
; ...conducting trials." DIAPHRAGMS AND MICROBICIDES Some researchers think that diaphragms and microbicides may...with a microbicide, a diaphragm could block STI pathogens...diaphragms alone or diaphragms with a microbicide...1.) Cohen C. The diaphragm: a female controlled...
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Colonic diaphragm disease without significant non-steroidal anti-inflammatory drug use: a case report.(Case Report)(Case study)
Magazine article from: Cases Journal; 10/17/2008; ; 700+ words
; ...seen but numerous 'diaphragms' were noted, most...approximately 30 thin-walled diaphragms, 10 of which were complete (Figure 1). The diaphragm within the more distal...not only because the diaphragms occurred in the large...steroidal usage. Diaphragm disease is a term used...
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The Diaphragm in COPD - Evidence of Overuse Injury and Considerations for Treatment
Magazine article from: Cardiopulmonary Physical Therapy Journal; 3/1/2004; ; 700+ words
; ...both adaptation and injury in the diaphragm, the most important muscle of...The adaptive changes in the COPD diaphragm include a shift in the fiber type...endurance phenotype. However, the diaphragm in COPD also displays microscopic...
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Utilizing diaphragm action for wind load design of timber frame and structural insulated panel buildings.
Magazine article from: Forest Products Journal; 5/1/2004; ; 700+ words
; ...with methods for including diaphragm action when designing timber...benefits of SIPs considered as diaphragm elements. Lateral forces...contribution of the building diaphragms and shear walls are not included...the ceiling and/or roof diaphragm and endwalls to the stiffness...
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Diaphragm (Birth Control)
Encyclopedia entry from: Gale Encyclopedia of Medicine, 3rd ed.
Diaphragm (Birth Control) Definition Diaphragms are dome-shaped...get under the diaphragm will be destroyed. Diaphragms may be inserted...conjunction with the diaphragm decreases the...for pregnancy. Diaphragms provide no protection...
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diaphragm
Book article from: The Columbia Encyclopedia, Sixth Edition
...the thoraco-abdominal diaphragm also stimulates the stomach...The thoraco-abdominal diaphragm is also subject to developmental...and infection. Other diaphragms in the human body include the pelvic diaphragm and the urogenital diaphragm...
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diaphragm wall
Book article from: A Dictionary of Earth Sciences
diaphragm wall ( core wall , cut-off trench ) A nearly impervious wall or core at the base of a dam or similar...used in support of deep trench excavations formed for the construction of cast-in-place concrete diaphragm walls.
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Microphone
Book article from: How Products Are Made
...into a microphone excites (moves) a diaphragm that is coupled to a device that creates...microphone consists of a thin plastic diaphragm attached to a voice coil. The voice...a permanent magnet. Sound causes the diaphragm to vibrate, which causes the voice coil...
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Telephone
Encyclopedia entry from: UXL Encyclopedia of Science
...The transmitter has a thin metal disk called a diaphragm inside it. Behind the diaphragm is a container that holds granules of carbon. When a person speaks into the transmitter, the diaphragm begins to vibrate. This vibration forces carbon...
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