| ECG | Electro-Cardio-Graphy(-Gram); ½ÉÀüµµ = EKG 1. Conducting System Structu... |
|---|---|
| DS | dead air space; dead space; deep sedative; deep sleep; defined substrate; dehydroepiandrosterone sul... |
| IS | ileal segment; immediate sensitivity; immune serum; immunosuppression; impingement syndrome; incenti... |
| DS | 1) Dead Space 2) Dehydroisoandrosterone Sulfate |
| ADS | acute death syndrome; acute diarrheal syndrome; Alcohol Dependence Scale; alternative delivery syste... |
| DOA | Dead on arrival |
|---|---|
| NASA | Aeronautic and Space Administration |
| ESA | European Space Agency |
| ECS | Extracellular space |
| HSGC | Head-Space Gas Chromatography |
| dead space | A cavity, potential or real, remaining after the closure of a wound which is not obliterated by the operative technique. See: anatomical dead space, physiologic dead space. (05 Mar 2000) |
|---|
| alveolar dead space | The difference between physiologic dead space and anatomical dead space; it represents that part of the physiologic dead space resulting from ventilation of relatively underperfused or nonperfused alveoli; it differs specifically in being placed so as to fill and empty in parallel with functional alveoli, rather than being interposed in the conducting tubes between functional alveoli and the external environment. (05 Mar 2000) |
|---|---|
| anatomical dead space | The volume of the conducting airways from the external environment (at the nose and mouth) down to the level at which inspired gas exchanges oxygen and carbon dioxide with pulmonary capillary blood; formerly presumed to extend down to the beginning of alveolar epithelium in the respiratory bronchioles, but more recent evidence indicates that effective gas exchange extends some distance up the thicker-walled conducting airways because of rapid longitudinal mixing. Compare: alveolar dead space, physiologic dead space. Synonym: anatomical airway. (05 Mar 2000) |
| respiratory dead space | That portion of the respiratory tract, from the nose and mouth to the terminal bronchioles, in which exchange of oxygen and carbon dioxide does not occur (anatomical dead space), together with the space in alveoli occupied by air that does not participate in oxygen-carbon dioxide exchange (physiologic dead space). It reflects the nonuniformity of ventilation and perfusion in the lung. (12 Dec 1998) |
| physiologic dead space | The sum of anatomic and alveolar dead space; the dead space calculated when the carbon dioxide pressure in systemic arterial blood is used instead of that of alveolar gas in Bohr's equation; it is a virtual or apparent volume that takes into account the impairment of gas exchange because of uneven distributions of lung ventilation and perfusion. (05 Mar 2000) |
| dead | 1. Deprived of life; opposed to alive and living; reduced to that state of a being in which the organs of motion and life have irrevocably ceased to perform their functions; as, a dead tree; a dead man. "The queen, my lord, is dead." "The crew, all except himself, were dead of hunger." (Arbuthnot) "Seek him with candle, bring him dead or living." (Shak) 2. Destitute of life; inanimate; as, dead matter. 3. Resembling death in appearance or quality; without show of life; deathlike; as, a dead sleep. 4. Still as death; motionless; inactive; useless; as, dead calm; a dead load or weight. 5. So constructed as not to transmit sound; soundless; as, a dead floor. 6. Unproductive; bringing no gain; unprofitable; as, dead capital; dead stock in trade. 7. Lacking spirit; dull; lusterless; cheerless; as, dead eye; dead fire; dead colour, etc. 8. Monotonous or unvaried; as, a dead level or pain; a dead wall. "The ground is a dead flat." 9. Sure as death; unerring; fixed; complete; as, a dead shot; a dead certainty. "I had them a dead bargain." (Goldsmith) 10. Bringing death; deadly. 11. Wanting in religious spirit and vitality; as, dead faith; dead works. "Dead in trespasses." 12. Flat; without gloss; said of painting which has been applied purposely to have this effect. Not brilliant; not rich; thus, brown is a dead colour, as compared with crimson. 13. Cut off from the rights of a citizen; deprived of the power of enjoying the rights of property; as, one banished or becoming a monk is civilly dead. 14. <machinery> Not imparting motion or power; as, the dead spindle of a lathe, etc. See Spindle. Dead ahead, a wind directly ahead, or opposed to the ship's course. To be dead, to die. "I deme thee, thou must algate be dead." (Chaucer) Synonym: Inanimate, deceased, extinct. See Lifeless. Origin: OE. Ded, dead, deed, AS. Dead; akin to OS. Dd, D. Dood, G. Todt, tot, Icel. Daur, Sw. & Dan. Dod, Goth. Daubs; prop. P. P. Of an old verb meaning to die. See Die, and cf. Death. Source: Websters Dictionary (01 Mar 1998) |
| DEAD box helicase | <enzyme> Family of ATP dependent DNA or RNA helicases with a 4 amino acid consensus, D E A D, that resembles an ATP binding site. Examples, p68, a human nuclear protein involved in cell growth, vasa, a Drosophila protein required for specification of posterior embryonic structures. (18 Nov 1997) |
| dead-end host | A host from which infectious agents are not transmitted to other susceptible host's. (05 Mar 2000) |
| dead-eye | A round, flattish, wooden block, encircled by a rope, or an iron band, and pierced with three holes to receive the lanyard; used to extend the shrouds and stays, and for other purposes. Synonym: deadman's eye. Source: Websters Dictionary (01 Mar 1998) |
| dead fingers | Impaired digital circulation, possibly a mild form of Raynaud's disease, marked by a purplish or waxy white colour of the fingers, with subnormal local temperature and paresthesia. Synonym: dead fingers, waxy fingers. Origin: acro-+ G. Asphyxia, stoppage of the pulse (05 Mar 2000) |
| dead foetus syndrome | <obstetrics, syndrome> A syndrome characterised by lengthy intrauterine retention of a dead foetus usually greater than 4 weeks with development of hypofibrinogenaemia and occasionally disseminated intravascular coagulopathy. (05 Mar 2000) |
| dead nerve | <anatomy, nerve> Misnomer for nonvital dental pulp. (05 Mar 2000) |
| dead pulp | Necrosis of the dental pulp which clinically does not respond to thermal stimulation; the tooth may be asymptomatic or sensitive to percussion and palpation. Synonym: dead pulp, nonvital pulp. (05 Mar 2000) |
| dead-stroke | <mechanics> Making a stroke without recoil; deadbeat. <machinery> Dead-stroke hammer, a power hammer having a spring interposed between the driving mechanism and the hammer head, or helve, to lessen the recoil of the hammer and reduce the shock upon the mechanism. Source: Websters Dictionary (01 Mar 1998) |
| dead tooth | A misnomer for pulpless tooth. (05 Mar 2000) |
| dead tracts | Dentin areas characterised by degenerated odontoblastic processes; may result from injury caused by caries, attrition, erosion, or cavity preparation. (05 Mar 2000) |
| dead space |
Wasted space in closets, under staircases, in corners and under furniture that is suitable for storage.
Ãâó: www.homestore.com/HomeGarden/HomeImprovement/Tools...
|
|---|---|
| dead space air |
The volume of air that fills the respiratory passageways and is not available for exchange of gases with the blood.
Ãâó:
|
| dead space |
Area in the patient
Ãâó: www.datex-ohmeda.com/clinical/cw_issue_03_article5...
|
| dead space |
A defect or cavity.
Ãâó: www.homehealthcarenurseonline.com/pt/re/homehealth...
|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|