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mondofacto - Online Medical Dictionary Category: Health and Medicine > Medical Dictionary Date & country: 26/01/2008, UK Words: 116197

Wb
Symbol for weber. ... (05 Mar 2000) ...

WBC
Synonym for white blood cell ... <haematology> White corpuscles in the blood. They are spherical, colourless and nucleated masses involved with host defenses. ... Normal white blood cell counts are variable with age and sex. Normal adult range is 4, 500 to 11,000 cells per cubic millimetre of blood. Slightly higher counts are seen in children. …

WDHA syndrome
Synonym for verner-morrison syndrome ... <radiology> WDHA syndrome, watery diarrhoea, hypokalaemia, achlorhydria, vasoactive intestinal peptide (VIP) secreted by, pancreatic isleT-cell tumour (VIPoma) ... (12 Dec 1998) ...

WDLL
<abbreviation> Well-differentiated lymphocytic lymphoma. ... (05 Mar 2000) ...

weak
1. Wanting physical strength. Specifically: ... Deficient in strength of body; feeble; infirm; sickly; debilitated; enfeebled; exhausted. 'A poor, infirm, weak, and despised old man.' (Shak) 'Weak with hunger, mad with love.' (Dryden) ... Not able to sustain a great weight, pressure, or strain; as, a weak timber; a weak rope. ... Not firmly united or …

weal and flare
Synonym for triple response ... <immunology> The vascular changes in the skin in response to mild mechanical injury, an outward spreading zone of reddening flare) followed rapidly by a weal (swelling) at the site of injury. ... Redness, heat and swelling, three of the cardinal signs of inflammation, are present. ... (18 Nov 1997) ...

weald
A wood or forest; a wooded land or region; also, an open country; often used in place names. 'Fled all night long by glimmering waste and weald, And heard the spirits of the waste and weald Moan as she fled. ... <geology> ' (Tennyson) Weald clay, the uppermost member of the Wealden strata. See Wealden. ... Origin: AS. See Wold. ... Source: Webst …

wealden
<geology> Of or pertaining to the lowest division of the Cretaceous formation in England and on the Continent, which overlies the Oolitic series. ... Origin: AS. Weald, wald, a forest, a wood. So called because this formation occurs in the wealds, or woods, of Kent and Sussex. See Weald. ... <geology> The Wealden group or strata. ... Sourc …

wean
To implement weaning. ... Origin: A.S. Wenian ... (05 Mar 2000) ...

weaning
Permanent deprivation of breast milk and commencement of nourishment with other food. ... (12 Dec 1998) ...

weapon
1. An instrument of offensive of defensive combat; something to fight with; anything used, or designed to be used, in destroying, defeating, or injuring an enemy, as a gun, a sword, etc. 'The weapons of our warfare are not carnal.' (2 Cor. X. 4) 'They, astonished, all resistance lost, All courage; down their idle weapons dropped.' (Milton) ... 2. Th …

wear
1. A dam in a river to stop and raise the water, for the purpose of conducting it to a mill, forming a fish pond, or the like. ... 2. A fence of stakes, brushwood, or the like, set in a stream, tideway, or inlet of the sea, for taking fish. ... 3. A long notch with a horizontal edge, as in the top of a vertical plate or plank, through which water flo …

wear-and-tear pigment
Lipofuscin that accumulates in aging or atrophic cells as a residue of lysosomal digestion. ... (05 Mar 2000) ...

weary
1. To reduce or exhaust the physical strength or endurance of; to tire; to fatigue; as, to weary one's self with labour or traveling. 'So shall he waste his means, weary his soldiers.' (Shak) ... 2. To make weary of anything; to exhaust the patience of, as by continuance. 'I stay too long by thee; I weary thee.' (Shak) ... 3. To harass by anything ir …

weasel
<zoology> Any one of various species of small carnivores belonging to the genus Putorius, as the ermine and ferret. They have a slender, elongated body, and are noted for the quickness of their movements and for their bloodthirsty habit in destroying poultry, rats, etc. The ermine and some other species are brown in summer, and turn white in …

weather
To undergo or endure the action of the atmosphere; to suffer meteorological influences; sometimes, to wear away, or alter, under atmospheric influences; to suffer waste by weather. 'The organisms . . . Seem indestructible, while the hard matrix in which they are imbedded has weathered from around them.' (H. Miller) ... 1. The state of the air or atm …

weaver's cough
An obsolete term for cough, dyspnea, and sense of constriction of the chest, caused in persons working with mildewed yarns. ... (05 Mar 2000) ...

weaving syndrome
<syndrome> A behavioural disorder of caged or confined animals where the animal stands in one position but weaves from side to side or rocks back and forth. ... (05 Mar 2000) ...

web
1. That which is woven; a texture; textile fabric; especially, something woven in a loom. 'Penelope, for her Ulysses' sake, Devised a web her wooers to deceive.' (Spenser) 'Not web might be woven, not a shuttle thrown, or penalty of exile.' (Bancroft) ... 2. A whole piece of linen cloth as woven. ... 3. The texture of very fine thread spun by a spide …

web of fingers-toes
One of the folds of skin, or rudimentary web, between the fingers and toes. ... Synonym: interdigital folds, plica interdigitalis. ... (05 Mar 2000) ...

webbed fingers
Two or more finger's united and enclosed in a common sheath of skin. ... (05 Mar 2000) ...

webbed neck
The broad neck due to lateral folds of skin extending from the clavicle to the head but containing no muscles, bones, or other structures; occurs in Turner's syndrome and in Noonan's syndrome. ... (05 Mar 2000) ...

webbed penis
Deficient ventral penile shaft skin which is buried in scrotum or tethered to scrotal midline by a fold or web of skin. The urethra and erectile bodies are usually normal. ... Synonym: penis palmatus, penoscrotal transposition. ... (05 Mar 2000) ...

webbed toes
Syndactyly involving the toes. ... (05 Mar 2000) ...

webbing
Congenital condition apparent when adjacent structures are joined by a broad band of tissue not normally present to such a degree. ... (05 Mar 2000) ...

Weber-Christian disease
relapsing febrile nodular nonsuppurative panniculitis ...

Weber-Cockayne syndrome
<syndrome> This represents a group of rare inherited disorders in which blistering of the skin occurs in response to skin trauma. Large fluid-filled blisters can occur in response to injury, skin rubbing, chafing or even increases in room temperature. Secondary bacterial infection of the blisters is common. Complications include oesophageal s …

Weber-Fechner law
The intensity of a sensation varies by a series of equal increments (arithmetically) as the strength of the stimulus is increased geometrically; if a series of stimuli is applied and so adjusted in strength that each stimulus causes a just perceptible change in intensity of the sensation, then the strength of each stimulus differs from the precedin …

Weber, Ernst
<person> German physiologist and anatomist, 1795-1878. ... See: Weber's experiment, Weber's glands, Weber's law, Weber's paradox, Weber's test for hearing, Fechner-Weber law, Weber-Fechner law. ... (05 Mar 2000) ...

Weber, Frederick Parkes
<person> English physician, 1863-1962. ... See: Weber-Christian disease, Weber-Cockayne syndrome, Rendu-Osler-Weber syndrome, Sturge-Kalischer-Weber syndrome, Sturge-Weber disease, Sturge-Weber syndrome, Klippel-Trenaunay-Weber syndrome. ... (05 Mar 2000) ...

Weber, Moritz
<person> German anatomist, 1795-1875. ... See: Weber's organ. ... (05 Mar 2000) ...

Weber, Sir Hermann
<person> English physician, 1823-1918. ... See: Weber's sign, Weber's syndrome. ... (05 Mar 2000) ...

Weber, Wilhelm
<person> German physicist, 1804-1891. ... See: Weber's point, Weber's triangle. ... (05 Mar 2000) ...

Weber's experiment
If the peripheral end of the divided vagus nerve is stimulated the heart is arrested in diastole. ... (05 Mar 2000) ...

Weber's glands
Muciparous gland's at the border of the tongue on either side posteriorly. ... (05 Mar 2000) ...

Weber's law
Synonym for Weber-Fechner law ... The intensity of a sensation varies by a series of equal increments (arithmetically) as the strength of the stimulus is increased geometrically; if a series of stimuli is applied and so adjusted in strength that each stimulus causes a just perceptible change in intensity of the sensation, then the strength of each s …

Weber's organ
Synonym for prostatic utricle ... A minute pouch in the prostate opening on the summit of the seminal colliculus, the analogue of the uterus and vagina in the female, being the remains of the fused caudal ends of the paramesonephric ducts. ... Synonym: utriculus prostaticus, masculine uterus, Morgagni's sinus, sinus pocularis, uterus masculinus, vagi …

Weber's point
A point situated 1 cm below the promontory of the sacrum; believed by Weber to represent the centre of gravity of the body. ... (05 Mar 2000) ...

Weber's sign
Synonym for Weber's syndrome ... <syndrome> Midbrain tegmentum lesion characterised by ipsilateral oculomotor nerve paresis and contralateral paralysis of the extremities, face, and tongue. ... Synonym: Weber's sign. ... (05 Mar 2000) ...

Weber's syndrome
<syndrome> Midbrain tegmentum lesion characterised by ipsilateral oculomotor nerve paresis and contralateral paralysis of the extremities, face, and tongue. ... Synonym: Weber's sign. ... (05 Mar 2000) ...

Weber's test for hearing
The application of a vibrating tuning fork to one of several points in the midline of the head or face, to ascertain in which ear the sound is heard best by bone conduction, that ear being the affected one if the sound-conducting apparatus (middle ear) is at fault (positive test), but probably the normal one if the neurosensory apparatus is disease …

Weber's triangle
On the sole of the foot, an area indicated by the heads of the first and fifth metatarsal bone and the centre of the plantar surface of the heel. ... (05 Mar 2000) ...

webform
<zoology> Any one of various species of moths whose gregarious larvae eat the leaves of trees, and construct a large web to which they retreat when not feeding. ... The most destructive webworms belong to the family Bombycidae, as the fall webworm (Hyphantria textor), which feeds on various fruit and forest trees, and the common tent caterpill …

Webster, John
<person> English chemist, 1878-1927. ... See: Webster's test. ... (05 Mar 2000) ...

Webster, John C
<person> U.S. Gynecologist, 1863-1950. ... See: Webster's operation. ... (05 Mar 2000) ...

Webster's operation
Synonym for Baldy's operation ... An obsolete operation for retrodisplacement of the uterus, consisting of bringing the round ligaments through the perforated broad ligaments and attaching them to each other and to the back of the uterus. ... Synonym: Webster's operation. ... (05 Mar 2000) ...

Webster's test
A test for trinitrotoluene in the urine. ... (05 Mar 2000) ...

Wechsler intelligence scales
Continuously revised and updated standardised scale's for the measurement of general intelligence in preschool children (Wechsler preschool and primary scale of intelligence), in children (Wechsler intelligence scale for children), and in adults (Wechsler adult intelligence scale, the successor to the Wechsler-Bellevue scale). ... (05 Mar 2000) ...

wechsler scales
Tests designed to measure intellectual functioning in children and adults. ... (12 Dec 1998) ...

Wechsler-Bellevue scale
A measure of general intelligence superseded by the Wechsler adult intelligence scale and its subsequent revision. ... See: Wechsler intelligence scales. ... (05 Mar 2000) ...

Wechsler, David
<person> U.S. Psychologist, *1896. ... See: Wechsler intelligence scales, Wechsler-Bellevue scale. ... (05 Mar 2000) ...

weddellite
Ca(O2C-CO2)-2Ha2O;a dihydrate of calcium oxalate; found in renal calculi. ... Compare: whewellite. ... Origin: for Weddell Sea, after James Weddell, Eng. Navigator, + -ite ... (05 Mar 2000) ...

weddellite calculus
A calculus in which the crystalloid component consists of calcium oxalate dihydrate. ... (05 Mar 2000) ...

wedding
Nuptial ceremony; nuptial festivities; marriage; nuptials. 'Simple and brief was the wedding, as that of Ruth and of Boaz.' (Longfellow) ... Certain anniversaries of an unbroken marriage have received fanciful, and more or less appropriate, names. Thus, the fifth anniversary is called the wooden wedding; the tenth, the tin wedding; the fifteenth, th …

wedeloside
<chemical> A compound found in the plant Wedelia asperrima that can inhibit the ADP/ ATP carrier system in mitochondria. ... (09 Oct 1997) ...

Wedensky effect
A relatively long enhancing effect following application of a maximal shock or stimulus to a neuromuscular preparation during which a subthreshold stimulation, otherwise too small to evoke a response, will produce a response; a relatively prolonged lowered threshold of excitability following a maximal shock. ... (05 Mar 2000) ...

Wedensky facilitation
The arrival of an impulse at a blocked zone, enhancing the excitability of the nerve beyond the block and indicating that the neuromuscular preparation distal to the block has been changed even though the enhancing stimulus is not conducted through the blocked zone. ... (05 Mar 2000) ...

Wedensky inhibition
Inhibition of muscle response resulting from application of a series of rapidly repeated stimuli to the motor nerve where slower frequency of stimulation results in muscle response. ... (05 Mar 2000) ...

Wedensky, Nikolai
<person> Russian neurophysiologist, 1852-1922. ... See: Wedensky effect, Wedensky facilitation, Wedensky inhibition. ... (05 Mar 2000) ...

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 …

wedge biopsy
Excision of a cuneiform specimen. ... (05 Mar 2000) ...

wedge bone
See: intermediate cuneiform bone, lateral cuneiform bone, medial cuneiform bone. ... (05 Mar 2000) ...

wedge pressure
The intravascular pressure reading obtained when a fine catheter is advanced until it completely occludes a small blood vessel or is sealed in place by inflation of a small cuff; commonly measured in the lung to estimate left atrial pressure. ... (05 Mar 2000) ...

wedge resection
Removal of a wedge-shaped portion of the ovary; used in the treatment of virilizing disorders of ovarian origin, such as the polycystic ovarian syndrome. ... (05 Mar 2000) ...

wedge spirometer
A waterless spirometer constructed of two large rectangular plates with edges connected by accordion-pleated rubber so that large changes in volume are accommodated by small changes in the acute angle of the wedge-shaped interior, sensed by an electrical transducer; designed for rapid response by reducing the acceleration of the moving parts. ... (0 …

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) ...

wedge-and-groove suture
Synonym for 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) ...

wedge-shaped fasciculus
Synonym for cuneate fasciculus ... The larger lateral subdivision of the posterior funiculus. ... Synonym: fasciculus cuneatus, Burdach's column, Burdach's fasciculus, Burdach's tract, cuneate funiculus, wedge-shaped fasciculus. ... (05 Mar 2000) ...

wedge-shaped tubercle
tubercle of cuneate nucleus ...

wedge-tailed
<ornithology, zoology> Having a tail which has the middle pair of feathers longest, the rest successively and decidedly shorter, and all more or less attenuate; said of certain birds. Wedge-tailed eagle, an Australian eagle (Aquila audax) which feeds on various small species of kangaroos, and on lambs; called also mountain eagle, bold eagle, …

wedgwood ware
A kind of fine pottery, the most remarkable being what is called jasper, either white, or coloured throughout the body, and capable of being molded into the most delicate forms, so that fine and minute bas-reliefs like cameos were made of it, fit even for being set as jewels. ... Origin: From the name of the inventor, Josiah Wedgwood, of England. …

wedlock
1. The ceremony, or the state, of marriage; matrimony. 'That blissful yoke . . . That men clepeth [call] spousal, or wedlock.' 'For what is wedlock forced but a hell, An age of discord or continual strife?' (Shak) ... 2. A wife; a married woman. ... Synonym: See Marriage. ... Origin: AS. Wedlac a pledge, be trothal; wedd a pledge + lac a gift, an offe …

wednesday
The fourth day of the week; the next day after Tuesday. Ash Wednesday. ... Origin: OE. Wednesdai, wodnesdei, AS. Wodnes daeg, i. E, Woden's day (a translation of L. Dies Mercurii); fr. Woden the highest god of the Teutonic peoples, but identified with the Roman god Mercury; akin to OS. Wodan, OHG. Wuotan, Icel. Othinn, D. Woensdag Wednesday, Icel. O …

WEE
<abbreviation> Western equine encephalomyelitis. ... (05 Mar 2000) ...

WEE virus
Synonym for western equine encephalomyelitis virus ... A group A arbovirus of the genus Alphavirus, family Togaviridae, occurring in the western United States and parts of South America; it occurs naturally, usually as a symptomless infection in birds, but causes western equine encephalomyelitis in horses and humans following transfer by the bites o …

weed
<botany> Any plant that is growing in a place where a human wants a different kindof plant or no plants at all. ... (09 Oct 1997) ...

weed control
<botany> Mechanical or chemical control of unwanted plants. Measures which have to be undertaken in a plant community to guarantee the growth of the desired vegetation. ... See: herbicide. ... (09 Oct 1997) ...

weeding
From Weed, Weeding chisel, a tool with a divided chisel-like end, for cutting the roots of large weeds under ground. Weeding forceps, an instrument for taking up some sorts of plants in weeding. Weeding fork, a strong, three-pronged fork, used in clearing ground of weeds; called also weeding iron. Weeding hook. Same as Weed hook. Weeding iron. See …

weekend hospital
A special facility, or an arrangement within a hospital setting, which enables a patient to work in the community during the work week and receive treatment in the hospital during the weekend. ... (05 Mar 2000) ...

Weeks, John
<person> U.S. Ophthalmologist, 1853-1949. ... See: Weeks' bacillus, Koch-Weeks bacillus. ... (05 Mar 2000) ...

Weeks' bacillus
Synonym for Haemophilus influenzae ... <bacteria> Bacterium sometimes associated with influenza virus infections, causes pneumonia and meningitis. ... (18 Nov 1997) ...

weep
1. Formerly, to express sorrow, grief, or anguish, by outcry, or by other manifest signs; in modern use, to show grief or other passions by shedding tears; to shed tears; to cry. To lament; to bewail; to bemoan. 'I weep bitterly the dead.' 'We wandering go Through dreary wastes, and weep each other's woe.' (Pope) ... 2. To shed, or pour forth, as te …

weeping
1. Grieving; lamenting; shedding tears. 'Weeping eyes.' ... 2. Discharging water, or other liquid, in drops or very slowly; surcharged with water. 'Weeping grounds.' ... 3. Having slender, pendent branches; said of trees; as, weeping willow; a weeping ash. ... 4. Pertaining to lamentation, or those who weep. Weeping cross, a cross erected on or by the …

weeping eczema
A moist, eczematous dermatitis. ... (05 Mar 2000) ...

weever
<zoology> Any one of several species of edible marine fishes belonging to the genus Trachinus, of the family Trachinidae. They have a broad spinose head, with the eyes looking upward. The long dorsal fin is supported by numerous strong, sharp spines which cause painful wounds. ... The two British species are the great, or greater, weever (Trac …

weevil
<zoology> Any one of numerous species of snout beetles, or Rhynchophora, in which the head is elongated and usually curved downward. Many of the species are very injurious to cultivated plants. The larvae of some of the species live in nuts, fruit, and grain by eating out the interior, as the plum weevil, or curculio, the nut weevils, and the …

wegener granulomatosis
<radiology> Sinuses, mucoperiosteal thickening, may destroy bone and cartilage, lungs, necrotizing granulomata, multiple round nodules (2 mm - 9 cm), may cavitate, kidneys, glomerulonephritis most likely to be necrosis of capillary tuft, generalised necrotizing vasculitis of arteries and veins, auto-immune: basement membrane, almost always in …

Wegener, Friedrich
<person> German pathologist, 1907-1990. ... See: Wegener's granulomatosis. ... (05 Mar 2000) ...

Wegener's granulomatosis
<immunology, nephrology> Wegener's granulomatosis or midline granulomatosis is a rare disorder characterised by chronic tissue inflammation (due to the inflammation of blood vessels) and granuloma (aggregates of cells) formation in the nasal passages, lungs and kidneys. ... (27 Sep 1997) ...

Wegner, Friedrich
<person> German pathologist, 1843-1917. ... See: Wegner's disease, Wegner's line. ... (05 Mar 2000) ...

Wegner's disease
syphilitic osteochondritis ...

Wegner's line
A narrow, whitish, slightly curved line representing an area of preliminary calcification at the junction of the epiphysis and diaphysis of a long bone, related to syphilitic epiphysitis. ... (05 Mar 2000) ...

Weibel Palade body
<haematology> Cytoplasmic organelle found in the vascular endothelial cells of some animals, though not in the endothelium of all vessels. Although markers for endothelium, their absence does not necessarily mean the cells are not of endothelial origin. ... (18 Nov 1997) ...

Weibel-Palade bodies
Rod-shaped bundles of microtubules seen by electron microscopy in vascular endothelial cells. ... (05 Mar 2000) ...

Weibel, Ewald
<person> 20th century Swiss physician. ... See: Weibel-Palade bodies. ... (05 Mar 2000) ...

Weichselbaum, Anthony
<person> Austrian pathologist, 1845-1920. ... See: Weichselbaum's coccus, Fraenkel-Weichselbaum pneumococcus. ... (05 Mar 2000) ...

Weichselbaum's coccus
Synonym for neisseria meningitidis ... A species of gram-negative, aerobic bacteria found in cerebrospinal fluid as the causative agent of cerebrospinal meningitis (meningitis, meningococcal) as well as in venereal discharges and blood. ... (12 Dec 1998) ...

Weidel, Hugo
<person> Austrian chemist, 1849-1899. ... See: Weidel's reaction. ... (05 Mar 2000) ...

Weidel's reaction
A reaction showing the presence of xanthine; a solution of the suspected substance in chlorine water with a little nitric acid is evaporated in a water bath, and then exposed to the vapor of ammonia; the presence of xanthine is indicated when a red or purple colour develops. ... (05 Mar 2000) ...

Weigert-Gram stain
<technique> A stain for bacteria in tissues in which sections are stained in alum-haematoxylin, then in eosin, aniline methyl violet, and Lugol's solution. ... (05 Mar 2000) ...