| rev | <molecular biology> A regulatory protein produced by HIV within infected cells. Rev helps transport HIV RNA sequences (messenger RNA) out from the nucleus into the cells cytoplasm, where it directs construction of proteins for new virus particles. (11 Jan 1998) |
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| revaccination | Vaccination of an individual previously successfully vaccinated. (05 Mar 2000) |
| revalescence | The act of growing well; the state of being revalescent. "Would this prove that the patient's revalescence had been independent of the medicines given him?" (Coleridge) Source: Websters Dictionary (01 Mar 1998) |
| revascularization | Reestablishment of blood supply to a part. (05 Mar 2000) |
| revelation | 1. The act of revealing, disclosing, or discovering to others what was before unknown to them. 2. That which is revealed. 3. The act of revealing divine truth. That which is revealed by God to man; especially, the Bible. "By revelation he made known unto me the mystery, as I wrote afore in few words." (Eph. Iii. 3) 4. Specifically, the last book of the sacred canon, containing the prophecies of St. John; the Apocalypse. Origin: F. Revelation, L. Revelatio. See Reveal. Source: Websters Dictionary (01 Mar 1998) |
| revellent | Causing revulsion; revulsive. <medicine> A revulsive medicine. Origin: L. Revellens, p. Pr. Of revellere. See Revel. Source: Websters Dictionary (01 Mar 1998) |
| revengeful | Full of, or prone to, revenge; vindictive; malicious; revenging; wreaking revenge. "If thy revengeful heart can not forgive." (Shak) "May my hands . . . Never brandish more rebvengeful steel." (Shak) Synonym: Vindictive, vengeful, resentful, malicious. Revenge"fully, Revenge"fulness. Source: Websters Dictionary (01 Mar 1998) |
| reverberating circuit | A theory of periodic conduction through the cerebral cortex of trains of impulses traveling in circuit's of neurons. (05 Mar 2000) |
| reverberation | Multiple echoes or reflections; in ultrasonography, an artifactual image caused by delay of an echo which has been reflected back and forward again before returning to the transducer. (05 Mar 2000) |
| Reverdin graft | Small bits of skin, of partial or full thickness, removed from a healthy area and seeded in a site to be covered. Synonym: Reverdin graft. (05 Mar 2000) |
| Reverdin's method | pinch graft |
| Reverdin, Jacques | <person> Swiss surgeon, 1842-1929. See: Reverdin graft, Reverdin's method. (05 Mar 2000) |
| reversal | 1. The act of reversing; the causing to move or face in an opposite direction, or to stand or lie in an inverted position; as, the reversal of a rotating wheel; the reversal of objects by a convex lens. 2. A change or overthrowing; as, the reversal of a judgment, which amounts to an official declaration that it is false; the reversal of an attainder, or of an outlawry, by which the sentence is rendered void. Origin: From Reverse. Source: Websters Dictionary (01 Mar 1998) |
| reversal learning | Any situation where an animal or human is trained to respond differentially to two stimuli (e.g., approach and avoidance) under reward and punishment conditions and subsequently trained under reversed reward values (i.e., the approach which was previously rewarded is punished and vice versa). (12 Dec 1998) |
| reversal of organs, total | This condition (medically called situs inversus totalis) involves complete transposition (right to left reversal) of the thoracic and abdominal organs. The heart is not in its usual position in the left chest but is on the right. Specifically related to the heart, this is referred to as dextrocardia (literally, right-hearted). And the stomach, which is normally in the left upper abdomen, is on the right. In patients with situs inversus totalis, all of the chest and abdominal organs are reversed and appear in mirror image when examined or visualised by tests such as X-ray filming. Situs inversus totalis has been estimated to occur once in about 6-8,000 births. Situs inversus occurs in a rare abnormal condition that is present at birth (congenital) called kartagener's syndrome. (12 Dec 1998) |
| gene products, rev | Trans-acting nuclear proteins whose functional expression are required for HIV viral replication. Specifically, the rev gene products are required for processing and translation of the HIV gag and env mRNAs, and thus rev regulates the expression of the viral structural proteins. Rev can also regulate viral regulatory proteins. A cis-acting antirepression sequence (car) in env, also known as the rev-responsive element (rre), is responsive to the rev gene product. Rev is short for regulator of virion. (12 Dec 1998) |
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| genes, rev | DNA sequences that form the coding region for a protein that regulates the expression of the viral structural and regulatory proteins in human immunodeficiency virus (HIV). Rev is short for regulator of virion. (12 Dec 1998) |