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mondofacto - Online Medical Dictionary
Category: Health and Medicine > Medical Dictionary
Date & country: 26/01/2008, UK
Words: 116197
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W-plastySurgery to prevent the contracture of a straight-line scar; the edges of the wound are trimmed in the shape of a W, or a series of W's, and closed in a zig-zag manner. ... Synonym: W procedure. ... (05 Mar 2000) ...
Waage, P<person> Norwegian chemist, 1833-1900. ... See: Guldberg-Waage law. ... (05 Mar 2000) ...
Waaler, Erik<person> 20th century Norwegian biologist. ... See: Rose-Waaler test. ... (05 Mar 2000) ...
Waardenburg syndrome<syndrome> Rare, autosomal dominant disease with variable penetrance and several known clinical types. ... Clinical features include depigmentation of the skin and hair with a white forelock, congenital cochlear deafness, heterochromia iridis or hypochromia iridis, medial eyebrow hyperplasia, hypertrophy of the nasal root producing increased w …
Waardenburg, Petrus Johannes<person> Dutch ophthalmologist, 1886-1979. ... See: Waardenburg syndrome. ... (05 Mar 2000) ...
Wachendorf, Eberhard<person> German botanist and anatomist, 1702-1758. ... See: Wachendorf's membrane. ... (05 Mar 2000) ...
Wachendorf's membraneSynonym for pupillary membrane ... Remnants of the central portion of the anterior layer of the iris stroma (the iridopupillary lamina) which occludes the pupil in foetal life, and normally atrophies about the seventh month of gestation. Persistent strands usually stretch across the pupil from one iris collarette to the other, without touching the p …
Wachstein-Meissel stain<technique> For calcium-magnesium-ATPase, a method similar to that of Gomori's non-specific acid phosphatase stain, except that incubation is carried out with ATP as substrate at neutral pH; enzyme activity is generally demonstrated at cell membranes. ... (05 Mar 2000) ...
Wachstein, Max<person> U.S. Histologist and pathologist, 1905-1965. ... See: Wachstein-Meissel stain for calcium-magnesium-ATPase. ... (05 Mar 2000) ...
Wachter, Herman<person> German pathologist, *1878. ... See: Bracht-Wachter lesion. ... (05 Mar 2000) ...
Wada test<investigation> Unilateral internal carotid injection of amobarbital to determine the laterality of speech; injection on the dominant side causes transient aphasia or mutism; used prior to surgical treatment of epilepsy. ... (05 Mar 2000) ...
Wada, J<person> 20th century Japanese-Canadian neurologist. ... See: Wada test. ... (05 Mar 2000) ...
waddingCarded cotton or wool in sheets, used for surgical dressings. ... (05 Mar 2000) ...
WaddingtonC. H., British embryologist and geneticist, 1905-1975. ... See: waddingtonian homeostasis. ... (05 Mar 2000) ...
waddingtonian homeostasisSynonym for homeorrhesis ... The set of processes by which imbalances and other defects in ontogeny are corrected before development is completed. ... Synonym: ontogenic homeostasis, waddingtonian homeostasis. ... Origin: homeo-+ G. Rheos, stream, current ... (05 Mar 2000) ...
waddleSynonym for waddling gait ... Rolling gait in which the weight-bearing hip is not stabilised; it bulges outward with each step, while the opposite side of the pelvis drops, resulting in alternating lateral trunk movements; due to gluteus medius muscle weakness, and seen with muscular dystrophies, among other disorders. ... Synonym: waddle. ... (05 Mar …
waddling gaitRolling gait in which the weight-bearing hip is not stabilised; it bulges outward with each step, while the opposite side of the pelvis drops, resulting in alternating lateral trunk movements; due to gluteus medius muscle weakness, and seen with muscular dystrophies, among other disorders. ... Synonym: waddle. ... (05 Mar 2000) ...
wafer1. A thin cake made of flour and other ingredients. 'Wafers piping hot out of the gleed.' (Chaucer) 'The curious work in pastry, the fine cakes, wafers, and marchpanes.' (Holland) 'A woman's oaths are wafers break with making' (B. Jonson) ... 2. A thin cake or piece of bread (commonly unleavened, circular, and stamped with a crucifix or with the sac …
wage1. That which is staked or ventured; that for which one incurs risk or danger; prize; gage. 'That warlike wage.' ... 2. That for which one labors; meed; reward; stipulated payment for service performed; hire; pay; compensation; at present generally used in the plural. See Wages. 'My day's wage.' . 'At least I earned my wage.' . 'Pay them a wage in a …
WagnerHans, Swiss ophthalmologist, *1905. ... See: Wagner's disease, Wagner's syndrome. ... (05 Mar 2000) ...
Wagner's diseaseSynonym for hyaloideoretinal degeneration ... Progressive liquefaction and destruction of the vitreous humor with grayish-white preretinal membranes, myopia, cataract, retinal detachment, and hyper-and hypopigmentation; autosomal dominant inheritance. ... Synonym: Wagner's disease, Wagner's syndrome. ... (05 Mar 2000) ...
Wagner's syndromeSynonym for hyaloideoretinal degeneration ... Progressive liquefaction and destruction of the vitreous humor with grayish-white preretinal membranes, myopia, cataract, retinal detachment, and hyper-and hypopigmentation; autosomal dominant inheritance. ... Synonym: Wagner's disease, Wagner's syndrome. ... (05 Mar 2000) ...
wagon1. A wheeled carriage; a vehicle on four wheels, and usually drawn by horses; especially, one used for carrying freight or merchandise. ... In the United States, light wagons are used for the conveyance of persons and light commodities. ... 2. A freight car on a railway. ... 3. A chariot ... 4. <astronomy> The Dipper, or Charles's Wain. ... This w …
wagr syndrome<syndrome> Wilms' tumour with aniridia, genitourinary abnormalities, and mental retardation. It is associated with hemizygous deletions of chromosome region 11p13. ... (12 Dec 1998) ...
WagstaffeWilliam, English surgeon, 1843-1910. ... See: Wagstaffe's fracture. ... (05 Mar 2000) ...
Wagstaffe's fractureFracture, with displacement, of the medial malleolus. ... (05 Mar 2000) ...
wagtail<ornithology> Any one of many species of Old World singing birds belonging to Motacilla and several allied genera of the family Motacillidae. They have the habit of constantly jerking their long tails up and down, whence the name. Field wagtail, any one of several species of wagtails of the genus Budytes having the tail shorter, the legs long …
waikavirusA genus of plant viruses in the family sequiviridae. Transmission is mostly by leafhoppers and depends on a self-encoded helper protein. The type species is rice tungro spherical virus. ... (12 Dec 1998) ...
wain1. A four-wheeled vehicle for the transportation of goods, produce, etc.; a wagon. 'The wardens see nothing but a wain of hay.' (Jeffrey) 'Driving in ponderous wains their household goods to the seashore.' (Longfellow) ... 2. A chariot. The Wain. ... <astronomy> See Charles's Wain, in the Vocabulary. Wain rope, a cart rope. ... Origin: OE. Wain, …
wainscot1. Oaken timber or boarding. 'A wedge wainscot is fittest and most proper for cleaving of an oaken tree.' (Urquhart) 'Inclosed in a chest of wainscot.' (J. Dart) ... 2. A wooden lining or boarding of the walls of apartments, usually made in panels. ... 3. <zoology> Any one of numerous species of European moths of the family Leucanidae. ... They …
waistThe portion of the trunk between the ribs and the pelvis. ... Origin: A.S. Waext ... Waist of the heart, an obsolete term for the middle segment of the cardiac silhouette, on the chest X-ray, containing the pulmonary salient. ... (05 Mar 2000) ...
waistcoatA short, sleeveless coat or garment for men, worn under the coat, extending no lower than the hips, and covering the waist; a vest. ... A garment occasionally worn by women as a part of fashionable costume. ... The waistcoat was a part of female attire as well as male . . . It was only when the waistcoat was worn without a gown or upper dress that it …
wait1. To stay for; to rest or remain stationary in expectation of; to await; as, to wait orders. 'Awed with these words, in camps they still abide, And wait with longing looks their promised guide.' (Dryden) ... 2. To attend as a consequence; to follow upon; to accompany; to await. ... 3. To attend on; to accompany; especially, to attend with ceremony o …
waiter's crampAn occupational dystonia characterised by spasm of the muscles of the back and dominant arm in persons who wait tables. ... (05 Mar 2000) ...
waiting listsProspective patient listings for appointments. ... (12 Dec 1998) ...
waive1. A waif; a castaway. ... 2. A woman put out of the protection of the law. See Waive, 3, and the Note. ... See: Waive. ... 1. To relinquish; to give up claim to; not to insist on or claim; to refuse; to forego. 'He waiveth milk, and flesh, and all.' (Chaucer) 'We absolutely do renounce or waive our own opinions, absolutely yielding to the direction o …
wake1. To be or to continue awake; to watch; not to sleep. 'The father waketh for the daughter.' (Ecclus. Xlii. 9) 'Though wisdom wake, suspicion sleeps.' (Milton) 'I can not think any time, waking or sleeping, without being sensible of it.' (Locke) ... 2. To sit up late festive purposes; to hold a night revel. 'The king doth wake to-night, and takes hi …
wakefulnessA state in which the individual is fully aware of his environment. ... (12 Dec 1998) ...
WalcherGustav A., German obstetrician, 1856-1935. ... See: Walcher position. ... (05 Mar 2000) ...
Walcher positionAn obsolete term for a supine position of the parturient woman with the lower extremities falling over the edge of the table. ... (05 Mar 2000) ...
waldensesA sect of dissenters from the ecclesiastical system of the Roman Catholic Church, who in the 13th century were driven by persecution to the valleys of Piedmont, where the sect survives. They profess substantially Protestant principles. ... Origin: So called from Petrus Waldus, or Peter Waldo, a merchant of Lyons, who founded this sect about a. D. 11 …
WaldenstromJan G., Swedish physician, *1906. ... See: Waldenstrom's macroglobulinaemia, Waldenstrom's purpura, Waldenstrom's syndrome, Waldenstrom's test. ... (05 Mar 2000) ...
waldenstrom macroglobulinaemia<radiology> Can cause infiltration of small bowel, associated with primary CNS lymphoma ... (12 Dec 1998) ...
Waldenstrom's macroglobulinaemia<haematology> A condition characterised by proliferation of cells resembling lymphocytes or plasma cells in the bone marrow, anaemia, increased sedimentation rate and hyperglobulinaemia. Physical findings include mucosal bleeding, skin purpura and enlargement of the lymph nodes, liver and spleen. ... Origin: Gr. Haima = blood ... (27 Sep 1997)< …
Waldenstrom's purpura<haematology> A condition characterised by proliferation of cells resembling lymphocytes or plasma cells in the bone marrow, anaemia, increased sedimentation rate and hyperglobulinaemia. Physical findings include mucosal bleeding, skin purpura and enlargement of the lymph nodes, liver and spleen. ... (27 Sep 1997) ...
Waldenstrom's syndromeSynonym for Waldenstrom's macroglobulinaemia ... <haematology> A condition characterised by proliferation of cells resembling lymphocytes or plasma cells in the bone marrow, anaemia, increased sedimentation rate and hyperglobulinaemia. Physical findings include mucosal bleeding, skin purpura and enlargement of the lymph nodes, liver and spleen …
Waldenstrom's testA test for porphyrin in the urine; 2 ml of urine are mixed with an equal amount of 2% dimethyl-p-aminobenzaldehyde in 50/100 HCl. A red colour appears if urobilinogen (Ehrlich's benzaldehyde reaction) or porphobilinogen is present. ... (05 Mar 2000) ...
Waldeyer(Waldeyer-Hartz) ... Heinrich G. Von, German anatomist and pathologist, 1836-1921. ... See: Waldeyer's fossae, Waldeyer's glands, Waldeyer's zonal layer, Waldeyer's throat ring, Waldeyer's sheath, Waldeyer's space, Waldeyer's tract. ... (05 Mar 2000) ...
Waldeyer's fossaeSee: inferior duodenal recess, superior duodenal recess. ... (05 Mar 2000) ...
Waldeyer's glandsCoil gland's near the margins of the eyelids. ... (05 Mar 2000) ...
Waldeyer's sheathThe tubular space between the bladder wall and the intramural portion of the ureter as it courses obliquely through this structure; actually a space and not a true sheath. ... Synonym: Waldeyer's space. ... (05 Mar 2000) ...
Waldeyer's spaceSynonym for Waldeyer's sheath ... The tubular space between the bladder wall and the intramural portion of the ureter as it courses obliquely through this structure; actually a space and not a true sheath. ... Synonym: Waldeyer's space. ... (05 Mar 2000) ...
Waldeyer's throat ringSynonym for lymphoid ring ... The broken ring of lymphoid tissue, formed of the lingual, faucial, and pharyngeal tonsils. ... Synonym: Bickel's ring, tonsillar ring, Waldeyer's throat ring. ... (05 Mar 2000) ...
Waldeyer's tractSynonym for dorsolateral fasciculus ... A longitudinal bundle of thin, unmyelinated and poorly myelinated fibres capping the apex of the posterior horn of the spinal gray matter, composed of posterior root fibres and short association fibres that interconnect neighboring segments of the posterior horn. ... Synonym: fasciculus dorsolateralis, tractus …
Waldeyer's zonal layerSynonym for dorsolateral fasciculus ... A longitudinal bundle of thin, unmyelinated and poorly myelinated fibres capping the apex of the posterior horn of the spinal gray matter, composed of posterior root fibres and short association fibres that interconnect neighboring segments of the posterior horn. ... Synonym: fasciculus dorsolateralis, tractus …
wale1. A streak or mark made on the skin by a rod or whip; a stripe; a wheal. See Wheal. ... 2. A ridge or streak rising above the surface, as of cloth; hence, the texture of cloth. 'Thou 'rt rougher far, And of a coarser wale, fuller of pride.' (Beau & Fl) ... 3. A timber bolted to a row of piles to secure them together and in position. ... 4. Certai …
walk1. The act of walking, or moving on the feet with a slow pace; advance without running or leaping. ... 2. The act of walking for recreation or exercise; as, a morning walk; an evening walk. ... 3. Manner of walking; gait; step; as, we often know a person at a distance by his walk. ... 4. That in or through which one walks; place or distance walked ove …
walk-through anginaA circumstance in which despite continuing activity, such as walking, the pain of angina pectoris diminishes or disappears. ... (05 Mar 2000) ...
walker1. One who walks; a pedestrian. ... 2. That with which one walks; a foot. 'Lame Mulciber, his walkers quite misgrown.' (Chapman) ... 3. A forest officer appointed to walk over a certain space for inspection; a forester. ... 4. [AS. Wealcere. See Walk, 3] A fuller of cloth. 'She cursed the weaver and the walker The cloth that had wrought.' (Percy's Rel …
Walker carcinomaSynonym for Walker carcinosarcoma ... <tumour> A transplantable carcinosarcoma of the rat that originally appeared spontaneously in the mammary gland of a pregnant albino rat, and which now resembles a carcinoma in young transplants and a sarcoma in older transplants. ... Synonym: Walker carcinoma. ... (05 Mar 2000) ...
Walker carcinosarcoma<tumour> A transplantable carcinosarcoma of the rat that originally appeared spontaneously in the mammary gland of a pregnant albino rat, and which now resembles a carcinoma in young transplants and a sarcoma in older transplants. ... Synonym: Walker carcinoma. ... (05 Mar 2000) ...
Walker tractotomy<procedure> A mesencephalic spinothalamic tractotomy. ... (05 Mar 2000) ...
Walker, A Earl<person> U.S. Neurologist, *1907. ... See: Walker tractotomy, Dandy-Walker syndrome. ... (05 Mar 2000) ...
Walker, J<person> Ainslie, English chemist, 1868-1930. ... See: Rideal-Walker coefficient, Rideal-Walker method. ... (05 Mar 2000) ...
Walker, James<person> British gynecologist, *1916. ... See: Walker's chart. ... (05 Mar 2000) ...
Walker's chartA system of plotting the relative foetal and placental sizes. ... (05 Mar 2000) ...
walkersWalking aids generally having two handgrips and four legs. ... (12 Dec 1998) ...
walking<molecular biology, technique> A class of techniques for cloning large regions of a chromosome. ... (14 Nov 1997) ...
walking pneumonia<chest medicine> A term used to describe Mycoplasmal pneumonia. most commonly affects those under 40 years of age and is commonly spread in families or closed populations. ... Symptoms include headache, muscle aches, fever, cough, chest pain, sore throat and rashes (in some individuals). Treatment is with antibiotics (for example erythromycin) …
wall1. A work or structure of stone, brick, or other materials, raised to some height, and intended for defense or security, solid and permanent inclosing fence, as around a field, a park, a town, etc, also, one of the upright inclosing parts of a building or a room. 'The plaster of the wall of the King's palace.' (Dan. V. 5) ... 2. A defense; a rampart …
wall conditioning<radiobiology> Describes a class of procedures used to control the composition of materials adsorbed onto the walls of a plasma device. Conditioning is important because material from the walls can create impurities in the plasma, and these impurities typically degrade plasma performance. ... See: boronisation, impurity control, electron cyclo …
wall loading<radiobiology> Fusion reactor thermal output power divided by the area of the wall facing the plasma. (Neutron wall loading is 4/5 of the total for D-T fusion.) ... (09 Oct 1997) ...
wall of nailSynonym for nail fold ... The fold of skin overlapping the lateral and proximal margins of the nail. ... Synonym: vallum unguis, wall of nail. ... (05 Mar 2000) ...
wall-eye1. An eye in which the iris is of a very light gray or whitish colour; said usually of horses. ... Jonson has defined wall-eye to be 'a disease in the crystalline humor of the eye; glaucoma.' But glaucoma is not a disease of the crystalline humor, nor is wall-eye a disease at all, but merely a natural blemish. In the north of England, as Brockett st …
wall-eyedHaving an eye of a very light gray or whitish colour. ... Shakespeare, in using wall-eyed as a term of reproach (as 'wall-eyed rage,' a 'wall-eyed wretch'), alludes probably to the idea of unnatural or distorted vision. See the Note under Wall-eye. It is an eye which is utterly and incurably perverted, an eye that knows no pity. ... Origin: Icel. Val …
wallabyOrigin: From a native name. ... <zoology> Any one of numerous species of kangaroos belonging to the genus Halmaturus, native of Australia and Tasmania, especially the smaller species, as the brush kangaroo (H. Bennettii) and the pademelon (H. Thetidis). The wallabies chiefly inhabit the wooded district and bushy plains. ... Alternative forms: w …
Wallace, Alfred Russel<person> A British naturalist who founded the field of biogeography and independently formulated a theory of natural selection around the same time that Darwin was doing his work. ... Lived: 1823-1913. ... (09 Oct 1997) ...
Wallenberg, Adolf<person> German physician, 1862-1949. ... See: Wallenberg's syndrome. ... (05 Mar 2000) ...
wallenberg's syndrome<syndrome> Syndrome caused by occlusion of the posterior inferior cerebellar artery, marked by ipsilateral loss of facial pain and temperature sensations, ipsilateral limb ataxia, and contralateral loss of pain and temperature sensations in the trunk and extremities. ... (12 Dec 1998) ...
Waller, Augustus<person> English physiologist, 1816-1870. ... See: wallerian degeneration, wallerian law. ... (05 Mar 2000) ...
wallerianRelating to or described by A.V. Waller. ... (05 Mar 2000) ...
wallerian lawAfter section of the posterior root of a spinal nerve between the root ganglion and the spinal cord, the central portion degenerates; after division of the anterior root, the peripheral portion degenerates; the trophic centre of the posterior root is therefore the ganglion, that of the anterior root the spinal cord. ... (05 Mar 2000) ...
wallflower1. <botany> A perennial, cruciferous plant (Cheiranthus Cheiri), with sweet-scented flowers varying in colour from yellow to orange and deep red. In Europe it very common on old walls. ... The name is sometimes extended to other species of Cheiranthus and of the related genus Erysimum, especially the American Western wallflower (Erysimum asper …
walloonsSing. Walloon . [Cf. F. Wallon. ... A Romanic people inhabiting that part of Belgium which comprises the provinces of Hainaut, Namur, Liege, and Luxembourg, and about one third of Brabant; also, the language spoken by this people. Used also adjectively. 'A base Walloon . . . Thrust Talbot with a spear.' Walloon guard, the bodyguard of the Spanish mo …
walnut<botany> The fruit or nut of any tree of the genus Juglans; also, the tree, and its timber. The seven or eight known species are all natives of the north temperate zone. ... In some parts of America, especially in new England, the name walnut is given to several species of hickory (Carya), and their fruit. Ash-leaved walnut, a tree (Juglans fr …
walrus<zoology> A very large marine mammal (Trichecus rosmarus) of the Seal family, native of the Arctic Ocean. The male has long and powerful tusks descending from the upper jaw. It uses these in procuring food and in fighting. It is hunted for its oil, ivory, and skin. It feeds largely on mollusks. Called also morse. ... The walrus of the North Pa …
Walthard, Max<person> Swiss gynecologist, 1867-1933. ... See: Walthard's cell rest. ... (05 Mar 2000) ...
Walthard's cell restA nest of epithelial cells occurring in the peritoneum of the uterine tubes or ovary; when neoplastic, possibly comprising one of the components of the Brenner tumour. ... (05 Mar 2000) ...
Walther, August<person> German anatomist, 1688-1746. ... See: Walther's dilator, Walther's canals, Walther's ducts, Walther's ganglion, Walther's plexus. ... (05 Mar 2000) ...
Walther's canalsSynonym for minor sublingual ducts ... From 8 to 20 small ducts of the sublingual salivary gland that open into the mouth on the surface of the sublingual fold; a few join the submandibular ducts. ... Synonym: ductus sublinguales minores, Rivinus' ducts, Walther's canals, Walther's ducts. ... (05 Mar 2000) ...
Walther's dilatorA gently curved instrument that tapers to an increased diameter, used to dilate the female urethra. ... (05 Mar 2000) ...
Walther's ductsSynonym for minor sublingual ducts ... From 8 to 20 small ducts of the sublingual salivary gland that open into the mouth on the surface of the sublingual fold; a few join the submandibular ducts. ... Synonym: ductus sublinguales minores, Rivinus' ducts, Walther's canals, Walther's ducts. ... (05 Mar 2000) ...
Walther's ganglionSynonym for ganglion impar ... The most inferior, unpaired ganglion of the sympathetic trunk; inconstant. ... Synonym: coccygeal ganglion, Walther's ganglion. ... (05 Mar 2000) ...
Walther's plexusSynonym for intracavernous plexus ... <anatomy> The portion of the internal carotid plexus in the cavernous sinus. ... Synonym: plexus cavernosus, Walther's plexus. ... (05 Mar 2000) ...
waltzed flapSynonym for caterpillar flap ... A tubed flap transferred end-over-end (in stages) from the donor area to a distant recipient area. ... Synonym: waltzed flap. ... (05 Mar 2000) ...
wampumBeads made of shells, used by the North American Indians as money, and also wrought into belts, etc, as an ornament. 'Round his waist his belt of wampum.' (Longfellow) 'Girded with his wampum braid.' (Whittier) ... These beads were of two kinds, one white, and the other black or dark purple. The term wampum is properly applied only to the white; the …
wandering abscessSynonym for perforating abscess ... An abscess that breaks down tissue barriers to enter adjacent areas. ... Synonym: gravitation abscess, hypostatic abscess, migrating abscess, wandering abscess. ... (05 Mar 2000) ...
wandering cellSynonym for ameboid cell ... A cell such as a leukocyte, having ameboid movements, with a power of locomotion. ... Synonym: wandering cell. ... Synonym: migratory cell. ... (05 Mar 2000) ...
wandering erysipelasSynonym for erysipelas migrans ... A widely spreading form involving the entire face or body surface. ... Synonym: ambulant erysipelas, wandering erysipelas. ... (05 Mar 2000) ...
wandering goiterSynonym for diving goiter ... A freely movable goiter that is sometimes above and sometimes below the sternal notch. ... Synonym: wandering goiter. ... (05 Mar 2000) ...
