| DAS | dead air space; Death Anxiety Scale; delayed anovulatory syndrome; dextroamphetamine sulfate; digita... |
|---|---|
| VD | vapor density; vascular disease; vasodilation, vasodilator; venereal disease; venous dilatation; ven... |
| VD | dead space |
| Vd | voided, voiding; volume dead space; volume of distribution |
| Vd/Vt | dead space ventilation/total ventilation [ratio] |
| anatomical tubercle | postmortem wart |
|---|---|
| anatomical wart | postmortem wart |
| 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) |
| antecubital space | The fossa in front of the elbow, bounded laterally and medially by the humeral origins of the extensors and flexors of the forearm, respectively, and superiorly by an imaginary line connecting the humeral condyles. Synonym: fossa cubitalis, antecubital space, chelidon, triangle of elbow. (05 Mar 2000) |
| anterior clear space | On lateral chest radiographs, the region dorsal to the sternum and ventral to the ascending aorta. Synonym: anterior clear space. (05 Mar 2000) |