| Warburg's respiratory enzyme | 1. A system of cytochromes and their oxidases that participate in respiratory processes. 2. Often, specifically, cytochrome oxidase. Synonym: Warburg's respiratory enzyme. Origin: Ger. (05 Mar 2000) |
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| Warburg's theory | That the development of cancer is due to irreversible damage to the respiratory mechanism of cells, leading to the selective multiplication of cells with increased glycolytic metabolism, both aerobic and anaerobic. (05 Mar 2000) |
| warburg's tincture | <pharmacology> A preparation containing quinine and many other ingredients, often used in the treatment of malarial affections. It was invented by Dr. Warburg of London. Source: Websters Dictionary (01 Mar 1998) |
| Warburg, Otto | <person> German biochemist and Nobel laureate, 1883-1970. See: Warburg's apparatus, Warburg's respiratory enzyme, Warburg's old yellow enzyme, Warburg's theory, Warburg-Lipmann-Dickens-Horecker shunt, Barcroft-Warburg apparatus, Barcroft-Warburg technique. (05 Mar 2000) |
| Warburg-Dickens-Horecker shunt | <biochemistry> A pathway of hexose oxidation in which glucose-6-phosphate undergoes two successive oxidations by NADP, the final one being an oxidative decarboxylation to form a pentose phosphate. Diverges from this when glucose-6-phosphate is oxidized to ribose 5 phosphate by the enzyme glucose-6 phosphate dehydrogenase. This step reduces NADP to NADPH, generating a source of reducing power in cells for use in reductive biosyntheses. In plants, part of the pathway functions in the formation of hexoses from carbon dioxide in photosynthesis. Also important as source of pentoses, for example for nucleic acid biosynthesis. This pathway is the main metabolic pathway in neutrophils, congenital deficiency in the pathway produces sensitivity to infection. Alternative metabolic route to Embden Meyerhof pathway for breakdown of glucose. (18 Nov 1997) |
| Warburg-Lipmann-Dickens-Horecker shunt | <biochemistry> A pathway of hexose oxidation in which glucose-6-phosphate undergoes two successive oxidations by NADP, the final one being an oxidative decarboxylation to form a pentose phosphate. Diverges from this when glucose-6-phosphate is oxidized to ribose 5 phosphate by the enzyme glucose-6 phosphate dehydrogenase. This step reduces NADP to NADPH, generating a source of reducing power in cells for use in reductive biosyntheses. In plants, part of the pathway functions in the formation of hexoses from carbon dioxide in photosynthesis. Also important as source of pentoses, for example for nucleic acid biosynthesis. This pathway is the main metabolic pathway in neutrophils, congenital deficiency in the pathway produces sensitivity to infection. Alternative metabolic route to Embden Meyerhof pathway for breakdown of glucose. (18 Nov 1997) |
| ward | 1. The act of guarding; watch; guard; guardianship; specifically, a guarding during the day. See the Note under Watch. "Still, when she slept, he kept both watch and ward." (Spenser) 2. One who, or that which, guards; garrison; defender; protector; means of guarding; defense; protection. "For the best ward of mine honor." (Shak) "The assieged castle's ward Their steadfast stands did mightily maintain." (Spenser) "For want of other ward, He lifted up his hand, his front to guard." (Dryden) 3. The state of being under guard or guardianship; confinement under guard; the condition of a child under a guardian; custody. "And he put them in ward in the house of the captain of the guard." (Gen. Xl. 3) "I must attend his majesty's command, to whom I am now in ward." (Shak) "It is also inconvenient, in Ireland, that the wards and marriages of gentlemen's children should be in the disposal of any of those lords." (Spenser) 4. A guarding or defensive motion or position, as in fencing; guard. "Thou knowest my old ward; here I lay, and thus I bore my point." (Shak) 5. One who, or that which, is guarded. Specifically: A minor or person under the care of a guardian; as, a ward in chancery. "You know our father's ward, the fair Monimia." A division of a county. A division, district, or quarter of a town or city. "Throughout the trembling city placed a guard, Dealing an equal share to every ward." (Dryden) A division of a forest. A division of a hospital; as, a fever ward. 6. A projecting ridge of metal in the interior of a lock, to prevent the use of any key which has not a corresponding notch for passing it. A notch or slit in a key corresponding to a ridge in the lock which it fits; a ward notch. "The lock is made . . . More secure by attaching wards to the front, as well as to the back, plate of the lock, in which case the key must be furnished with corresponding notches." (Tomlinson) Ward penny, money paid to the sheriff or castellan for watching and warding a castle. Ward staff, a constable's or watchman's staff. Origin: AS. Weard, fem, guard, weard, asc, keeper, guard; akin to OS. Ward a watcher, warden, G. Wart, OHG. Wart, Icel. Vorr a warden, a watch, Goth. -wards in daorawards a doorkeeper, and E. Wary; cf. OF. Warde guard, from the German. See Ware, Wary, and cf. Guard, Wraith. Source: Websters Dictionary (01 Mar 1998) |
| Ward's triangle | An area of diminished density in the trabecular pattern of the neck of the femur evident by X-ray as well as by direct inspection. (05 Mar 2000) |
| Ward, Frederick | <person> British osteologist, 1818-1877. See: Ward's triangle. (05 Mar 2000) |
| Ward, O | <person> 20th century paediatrician. See: Romano-Ward syndrome. (05 Mar 2000) |
| Ward-Romano syndrome | <syndrome> A prolonged Q-T interval in the electrocardiogram in children subject to attacks of unconsciousness that result from ventricular arrhythmias including ventricular fibrillation; autosomal dominant inheritance. Compare: Jervell and Lange-Nielsen syndrome. Synonym: Ward-Romano syndrome. (05 Mar 2000) |
| warden | 1. A keeper; a guardian; a watchman. "He called to the warden on the . . . Battlements." (Sir. W. Scott) 2. An officer who keeps or guards; a keeper; as, the warden of a prison. 3. A head official; as, the warden of a college; specifically, a churchwarden. 4. [Properly, a keeping pear] A large, hard pear, chiefly used for baking and roasting. "I would have had him roasted like a warden." (Beau. & Fl) Warden pie, a pie made of warden pears. Origin: OE. Wardein, OF. Wardein, gardein, gardain, F. Gardien. See Guardian, and Ward guard. Source: Websters Dictionary (01 Mar 1998) |
| wardian | Designating, or pertaining to, a kind of glass inclosure for keeping ferns, mosses, etc, or for transporting growing plants from a distance; as, a Wardian case of plants; so named from the inventor, Nathaniel B. Ward, an Englishman. Source: Websters Dictionary (01 Mar 1998) |
| Wardrop's disease | Acute onychia occurring spontaneously in debilitated patients, or in response to slight trauma. Synonym: Wardrop's disease. (05 Mar 2000) |
| Wardrop's method | Treatment of aneurysm by ligation of the artery at some distance beyond the sac, leaving one or more branches of the artery between the sac and the ligature. (05 Mar 2000) |