| rev | reverse; review; revolution |
|---|---|
| EBI | emetine bismuth iodide; erythroblastic island; estradiol binding index |
| is | in situ; island; islet; isolated |
| CIMP | CpG island methylator phenotype |
|---|---|
| HPI | High-Pathogenicity Island |
| PAI | Pathogenicity Island |
| RIR | Rhode Island Red |
| SPI1 | Salmonella Pathogenicity Island 1 |
| revolution | 1. The act of revolving, or turning round on an axis or a center; the motion of a body round a fixed point or line; rotation; as, the revolution of a wheel, of a top, of the earth on its axis, etc. 2. Return to a point before occupied, or to a point relatively the same; a rolling back; return; as, revolution in an ellipse or spiral. "That fear Comes thundering back, with dreadful revolution, On my defenseless head." (Milton) 3. The space measured by the regular return of a revolving body; the period made by the regular recurrence of a measure of time, or by a succession of similar events. "The short revolution of a day." 4. <astronomy> The motion of any body, as a planet or satellite, in a curved line or orbit, until it returns to the same point again, or to a point relatively the same; designated as the annual, anomalistic, nodical, sidereal, or tropical revolution, according as the point of return or completion has a fixed relation to the year, the anomaly, the nodes, the stars, or the tropics; as, the revolution of the earth about the sun; the revolution of the moon about the earth. The term is sometimes applied in astronomy to the motion of a single body, as a planet, about its own axis, but this motion is usually called rotation. 5. <geometry> The motion of a point, line, or surface about a point or line as its center or axis, in such a manner that a moving point generates a curve, a moving line a surface (called a surface of revolution), and a moving surface a solid (called a solid of revolution); as, the revolution of a right-angled triangle about one of its sides generates a cone; the revolution of a semicircle about the diameter generates a sphere. 6. A total or radical change; as, a revolution in one's circumstances or way of living. "The ability . . . Of the great philosopher speedily produced a complete revolution throughout the department." (Macaulay) 7. A fundamental change in political organization, or in a government or constitution; the overthrow or renunciation of one government, and the substitution of another, by the governed. "The violence of revolutions is generally proportioned to the degree of the maladministration which has produced them." (Macaulay) When used without qualifying terms, the word is often applied specifically, by way of eminence, to: (a) The English Revolution in 1689, when William of Orange and Mary became the reigning sovereigns, in place of James II. (b) The American Revolution, beginning in 1775, by which the English colonies, since known as the United States, secured their independence. (c) The revolution in France in 1789, commonly called the French Revolution, the subsequent revolutions in that country being designated by their dates, as the Revolution of 1830, of 1848, etc. Origin: F. Revolution, L. Revolutio. See Revolve. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| green revolution | Advances in genetics, petrochemicals, and machinery that culminated in adramatic increase in crop productivity during the third quarter of the20th century. (09 Oct 1997) |
| bam island | <molecular biology> Areas of DNA which do not get transcribed, consisting of many repeats of the same sequence of nucleotide bases. (13 Nov 1997) |
| blood island | An aggregation of splanchnic mesodermal cells on the embryonic yolk sac, with the potentiality of forming vascular endothelium and primitive blood cells. Synonym: blood islet. (05 Mar 2000) |
| bone island | <radiology> Small, intramedullary island of compact bone, usually negative on bone scan, shaggy, slightly stellate border, Differential diagnosis: osteoid osteoma, multiple leading to osteopoikilosis (12 Dec 1998) |
| magnetic island | <physics> A magnetic topology near a rational surface where the flux surface is broken up into tubes which are not connected with each other poloidally. Islands may develop in non-ideal magnetohydrodynamic fluids, where electrical resistance becomes important and magnetic field lines are no longer frozen-in to the fluid. Then magnetic tearing and reconnection may allow field lines to link up and form islands with a local magnetic axis in a narrow region near a rational surface. (See also magnetohydrodynamic, frozen-in law). The development of islands may be caused by a small perturbation, whether internal or external, whether deliberate or accidental, and is usually associated with enhanced transport (i.e., reduced confinement). The centres of the islands are magnetic O-points, while the boundaries between islands are marked by X-points. (09 Oct 1997) |
| pitcairn island | An island in polynesia, in the south pacific ocean. It was discovered in 1767 by philip carteret, uninhabited until 1790 when settled by mutineers from the english ship, bounty. The settlement was discovered in 1808; the population was removed temporarily to tahiti in 1831 and to norfolk island (between new caledonia and new zealand) in 1856. Some later returned to pitcairn and their descendents constitute the present population of this british colony. The island is named for the midshipman who first sighted it from the ship. (12 Dec 1998) |
| CpG island | <molecular biology> Region of genomic DNA rich in the dinucleotide C G. Methylation of the C in the dinucleotide is maintained through cell divisions and profoundly affects the degree of transcription of the nearby genes and is important in developmental regulation of gene expression. (18 Nov 1997) |
| cpg-rich island | <molecular biology> Areas of DNA which consist mostly of the base pair sequence CGCGCGCG. (alternating cytosine and guanine nucleotide bases) that are usually found upstream of many genes and are thought to help regulate gene expression. They are often methylated (have methyl groups attached to the DNA segments). (28 May 1998) |
| prince edward island | An island in the gulf of st. Lawrence constituting a province of canada in the eastern part of the country. It is very irregular in shape with many deep inlets. Its capital is charlottetown. Discovered by the french in 1534 and originally named ile saint-jean, it was renamed in 1799 in honor of prince edward, fourth son of george III and future father of queen victoria. (12 Dec 1998) |
| island | 1. <geography> A tract of land surrounded by water, and smaller than a continent. Cf. Continent. 2. Anything regarded as resembling an island; as, an island of ice. Origin: OE. Iland, yland, AS. Igland, gland, glond; ig, g, island + land, lond, land. AS. Ig, g, is akin to AS. Ea water, river, OHG. Uwa, G. Au meadow, Icel. Ey island, Dan. & Sw. O, Goth. Ahwa a stream, water, L. Aqua water. The s is due to confusion with isle. Cf. Ait, Eyot, Ewer, Aquatic. Source: Websters Dictionary (01 Mar 1998) |
| island disease | See Typhus, scrub. (12 Dec 1998) |
| island fever | See Typhus, scrub. (12 Dec 1998) |
| island flap | A flap in which the pedicle consists solely of the supplying artery and vein(s), sometimes including a nerve. (05 Mar 2000) |
| island of Reil | 1. An oval region of the cerebral cortex overlying the extreme capsule, lateral to the lenticular nucleus, buried in the depth of the fissura lateralis cerebri (sylvian fissure). Synonym: insular area, insular cortex, island of Reil. Synonym: island. 3. Any circumscribed body or patch on the skin. Origin: L. Island (05 Mar 2000) |
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¿© |
|---|