| PCW | pericanalicular web; personal care worker; primary capillary wedge; pulmonary capillary wedge; purif... |
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| DDD | AV universal [pacemaker]; defined daily dose; degenerative disc disease; dehydroxydinaphthyl disulfi... |
| SUS | Saybolt Universal Seconds; solitary ulcer syndrome; stained urinary sediment; suppressor sensitive |
| UB 82 | universal billing document [1982] |
| UEM | universal electron microscope |
| UP | Universal Precautions |
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| UNHS | Universal newborn hearing screening |
| EDW | Enhanced Dynamic Wedge |
| PCW | Pulmonary Capillary Wedge |
| PCWP | Pulmonary Capillary Wedge Pressure |
| universal | 1. Of or pertaining to the universe; extending to, including, or affecting, the whole number, quantity, or space; unlimited; general; all-reaching; all-pervading; as, universal ruin; universal good; universal benevolence or benefice. "Anointed universal King." "The universal cause Acts not by partial, but by general laws." (Pope) "This universal frame began." (Dryden) Universal and its derivatives are used in common discourse for general and its derivatives. See General. 2. Constituting or considered as a whole; total; entire; whole; as, the universal world. "At which the universal host up dent A shout that tore Hell's concave." (Milton) 3. <mechanics> Adapted or adaptable to all or to various uses, shapes, sizes, etc.; as, a universal milling machine. 4. <logic> Forming the whole of a genus; relatively unlimited in extension; affirmed or denied of the whole of a subject; as, a universal proposition; opposed to particular; e. G. (universal affirmative) All men are animals; (universal negative) No men are omniscient. 5. Universal dial, a dial by which the hour may be found in any part of the world, or under any elevation of the pole. 6. <astronomy> Universal instrument, a contrivance used for joining two shafts or parts of a machine endwise, so that the one may give rotary motion to the other when forming an angle with it, or may move freely in all directions with respect to the other, as by means of a cross connecting the forked ends of the two shafts. Since this joint can not act when the angle of the shafts is less than 140 deg, a double joint of the same kind is sometimes used for giving rotary motion at angles less than 140 deg. 7. <botany> Universal umbel, a primary or general umbel; the first or largest set of rays in a compound umbel; opposed to partial umbel. A universal involucre is not unfrequently placed at the foot of a universal umbel. Synonym: General, all, whole, total. Origin: L. Universalis: cf. F. Universel, OF. Also universal. (10 Mar 1998) |
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| universal antidote | <pharmacology> A preparation of activated charcoal that can adsorb and therefore neutralise many toxic chemicals. (09 Oct 1997) |
| universal appliance | A combination of the edgewise and ribbon arch appliance techniques, affording precise control of individual teeth in all planes of space. (05 Mar 2000) |
| universal coverage | Health insurance coverage for all persons in a state or country, rather than for some subset of the population. It may extend to the unemployed as well as to the employed; to aliens as well as to citisens; for pre-existing conditions as well as for current illnesses; for mental as well as for physical conditions. (12 Dec 1998) |
| universal donor | In blood grouping, a person belonging to group O; i.e., one whose erythrocytes do not contain either agglutinogen A or B and are, therefore, not agglutinated by plasma containing either of the ordinary isoagglutinins, alpha or beta. (05 Mar 2000) |
| universal gas constant | <radiobiology> R = 8.314 x 10^7 ergs per degree C per mole. (09 Oct 1997) |
| universal infantilism | Dwarfism generally associated with hypogonadism; may be caused by deficient secretion of anterior pituitary hormones. Synonym: Lorain's disease, proportionate infantilism, universal infantilism. (05 Mar 2000) |
| universal instability | <radiobiology> Low-frequency instability resulting from the presence of density gradients perpendicular to the magnetic field lines. An instability of this type is generally localised and usually has a small rate of growth. (09 Oct 1997) |
| universal numerical notation for teeth | <dentistry> The universal numerical notation is an alternative numerical notation for teeth. In this notation, your upper right third molar is designated as tooth#1, and then you number each tooth sequentially moving right to left and down across your mouth. (08 Jan 1998) |
| universal precautions | Prudent standard preventive measures to be taken by professional and other health personnel in contact with persons afflicted with a communicable disease, to avoid contracting the disease by contagion or infection. Precautions are especially applicable in the diagnosis and care of aids patients. (12 Dec 1998) |
| universal solvent | A substance sought by the alchemists, and claimed by some to have been found, supposedly capable of dissolving all substances; sometimes, in a physiological sense, applied to water. (05 Mar 2000) |
| universal tube | A straight, cylindrical glass vial that holds about 25 millilitres and istopped with a screw-on cap. (09 Oct 1997) |
| gray wedge | <microscopy> An elongated rectangular pattern whose brightness changes from black through shades of gray to white along its length. In calibration wedges, the brightness may vary linearly or logarithmically in discrete steps. (05 Aug 1998) |
| wedge | 1. To cleave or separate with a wedge or wedges, or as with a wedge; to rive. "My heart, as wedged with a sigh, would rive in twain." 2. To force or drive as a wedge is driven. "Among the crowd in the abbey where a finger Could not be wedged in more." (Shak) "He 's just the sort of man to wedge himself into a snug berth." (Mrs. J. H. Ewing) 3. To force by crowding and pushing as a wedge does; as, to wedge one's way. 4. To press closely; to fix, or make fast, in the manner of a wedge that is driven into something. "Wedged in the rocky shoals, and sticking fast." (Dryden) 5. To fasten with a wedge, or with wedges; as, to wedge a scythe on the snath; to wedge a rail or a piece of timber in its place. 6. To cut, as clay, into wedgelike masses, and work by dashing together, in order to expel air bubbles, etc. Origin: Wedged; Wedging. 1. A piece of metal, or other hard material, thick at one end, and tapering to a thin edge at the other, used in splitting wood, rocks, etc, in raising heavy bodies, and the like. It is one of the six elementary machines called the mechanical powers. 2. <geometry> A solid of five sides, having a rectangular base, two rectangular or trapezoidal sides meeting in an edge, and two triangular ends. 3. A mass of metal, especially when of a wedgelike form. "Wedges of gold." 4. Anything in the form of a wedge, as a body of troops drawn up in such a form. "In warlike muster they appear, In rhombs, and wedges, and half-moons, and wings." (Milton) 5. The person whose name stands lowest on the list of the classical tripos; so called after a person (Wedgewood) who occupied this position on the first list of 1828. Fox wedge. <geometry> The portion of a sphere included between two planes which intersect in a diameter. Origin: OE. Wegge, AS. Wecg; akin to D. Wig, wigge, OHG. Wecki, G. Weck a (wedge-shaped) loaf, Icel. Veggr, Dan. Vaegge, Sw. Vigg, and probably to Lith. Vagis a peg. Cf. Wigg. Source: Websters Dictionary (01 Mar 1998) |
| wedge-and-groove joint | A form of fibrous joint in which the sharp edge of one bone is received in a cleft in the edge of the other, as in the articulation of the vomer with the rostrum of the sphenoid. Synonym: schindylesis, schindyletic joint, wedge-and-groove suture. (05 Mar 2000) |
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