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


Wheeler-Johnson test
Cystosine or uracil when treated with bromine yields dialuric acid which gives a green colour with excess of barium hydroxide. ... (05 Mar 2000) ...

Wheeler, Henry Lord
<person> U.S. Chemist, 1867-1914. ... See: Wheeler-Johnson test. ... (05 Mar 2000) ...

Wheeler, John
<person> U.S. Ophthalmologist, 1879-1938. ... See: Wheeler method. ... (05 Mar 2000) ...

Wheelhouse, Claudius
<person> English surgeon, 1826-1909. ... See: Wheelhouse's operation. ... (05 Mar 2000) ...

Wheelhouse's operation
An obsolete term for external urethrotomy. ... (05 Mar 2000) ...

wheeling
The process of transferring electrical energy between buyer and seller by way of an intermediate utility or utilities. ... (05 Dec 1998) ...

wheeze
To breathe hard, and with an audible piping or whistling sound, as persons affected with asthma. 'Wheezing lungs.' ... Origin: OE. Whesen, AS. Hwsan (cf. Icel. Hvaesa to hiss, Sw. Hvasa, Dan. Hvaese); akin to AS. Hwsta a cough, D. Hoest, G. Husten, OHG. Huosto, Icel. Hsti, Lith. Kosti to cough, Skr. Ks. Cf. Husky hoarse. ... Source: Websters Dictiona …

wheezing
<chest medicine, clinical sign> A musical sound that is most pronounced on the exhalation of air. Seen in asthmatics. Indicates bronchospasm. ... (27 Sep 1997) ...

whelk
<zoology> Any one numerous species of large marine gastropods belonging to Buccinum and allied genera; especially, Buccinum undatum, common on the coasts both of Europe and North America, and much used as food in Europe. Whelk tingle, a dog whelk. See Dog. ... Origin: OE. Welk, wilk, AS. Weoloc, weloc, wiloc. Cf. Whilk, and Wilk. ... 1. A papul …

whetstone crystals
Xanthine crystal's occasionally observed in urine. ... (05 Mar 2000) ...

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

whey
<biology> The fluid protion of milk that separates from curd. ... (09 Oct 1997) ...

whey alum
An astringent and styptic preparation made by boiling alum (1 oz.) in milk (10 oz.). ... (05 Mar 2000) ...

whey protein
The soluble protein contained in the whey of milk clotted by rennin; e.g., lactoglobulin, alpha-lactalbumin, lactoferrin. ... (05 Mar 2000) ...

whidah bird
<ornithology> Any one of several species of finchlike birds belonging to the genus Vidua, native of Asia and Africa. In the breeding season the male has very long, drooping tail feathers. ... Synonym: vida finch, whidah finch, whydah bird, whydah finch, widow bird, and widow finch. ... Some of the species are often kept as cage birds, especiall …

whiff
1. A sudden expulsion of air from the mouth; a quick puff or slight gust, as of air or smoke. 'But with the whiff and wind of his fell sword The unnerved father falls.' (Shak) 'The skipper, he blew a whiff from his pipe, And a scornful laugh laughed he.' (Longfellow) ... 2. A glimpse; a hasty view. ... 3. <zoology> The marysole, or sail fluke.< …

whiffler
1. One who whiffles, or frequently changes his opinion or course; one who uses shifts and evasions in argument; hence, a trifler. 'Every whiffler in a laced coat who frequents the chocolate house shall talk of the constitution.' (Swift) ... 2. One who plays on a whiffle; a fifer or piper. ... 3. An officer who went before procession to clear the way …

while
1. Space of time, or continued duration, especially. When short; a time; as, one while we thought him innocent. 'All this while.' 'This mighty queen may no while endure.' (Chaucer) '[Some guest that] hath outside his welcome while, And tells the jest without the smile.' (Coleridge) 'I will go forth and breathe the air a while.' (Longfellow) ... 2. T …

whim
<zoology> The European widgeon. ... Origin: Cf. Whimbrel. ... 1. A sudden turn or start of the mind; a temporary eccentricity; a freak; a fancy; a capricious notion; a humor; a caprice. 'Let every man enjoy his whim.' (Churchill) ... 2. <chemical> A large capstan or vertical drum turned by horse power or steam power, for raising ore or wat …

whip
1. To strike with a lash, a cord, a rod, or anything slender and lithe; to lash; to beat; as, to whip a horse, or a carpet. ... 2. To drive with lashes or strokes of a whip; to cause to rotate by lashing with a cord; as, to whip a top. ... 3. To punish with a whip, scourge, or rod; to flog; to beat; as, to whip a vagrant; to whip one with thirty nine …

whip bougie
A bougie tapered to a threadlike tip at the end. ... (05 Mar 2000) ...

whiplash injuries
Hyperextension injury to the neck, often the result of being struck from behind by a fast-moving vehicle, in an automobile accident. ... (12 Dec 1998) ...

whiplash injury
Popular term for hyperextension-hyperflexion injury. ... (05 Mar 2000) ...

whipparee
<zoology> A large sting ray (Dasybatis, or Trygon, Sayi) native of the Southern United States. It is destitute of large spines on the body and tail. ... A large sting ray (Rhinoptera bonasus, or R. Quadriloba) of the Atlantic coast of the United States. Its snout appears to be four-lobed when viewed in front, whence it is also called cow-nosed …

whipple disease
<radiology> Bacterial: Tropheryma whipplei, treatment: antibiotics, hallmark: macrophages in lamina propria stain PAS-positive Findings: thick small bowel folds, dilated lumen, pebble-like surface due to increased villi Differential diagnosis: (infiltrative diseases), sprue, lymphoma, amyloid, EG ... (12 Dec 1998) ...

Whipple, Allen
<person> U.S. Surgeon, 1881-1963. ... See: Whipple's operation. ... (05 Mar 2000) ...

Whipple, George
<person> U.S. Pathologist and Nobel laureate, 1878-1976. ... See: Whipple's disease. ... (05 Mar 2000) ...

Whipple's disease
<gastroenterology> A rare disorder of intestinal malabsorption that occurs as the result of the intestine. Treatment is with antibiotics. ... (27 Sep 1997) ...

Whipple's operation
Synonym for pancreatoduodenectomy ... <procedure> Excision of all or part of the pancreas together with the duodenum. ... Synonym: Whipple's operation. ... (05 Mar 2000) ...

whippletree
1. The pivoted or swinging bar to which the traces, or tugs, of a harness are fastened, and by which a carriage, a plow, or other implement or vehicle, is drawn; a whiffletree; a swingletree; a singletree. See Singletree. '[People] cut their own whippletree in the woodlot.' (Emerson) ... 2. <botany> The cornel tree. ... See: Whip, and cf. Whiff …

whipworm infection
<gastroenterology> An infection of the large intestine by Trichuris trichiura. ... It may be the most common helminthic infection found in Americans returning from subtropical and tropical areas. Children and the mentally retarded have the highest rate of infection due to a general lack of sanitary habits. ... The worms are 30-50 mm in length a …

whirl
1. To turn round rapidly; to cause to rotate with velocity; to make to revolve. 'He whirls his sword around without delay.' (Dryden) ... 2. To remove or carry quickly with, or as with, a revolving motion; to snatch; to harry. 'See, see the chariot, and those rushing wheels, That whirled the prophet up at Chebar flood.' (Milton) 'The passionate heart …

whirligig
1. A child's toy, spun or whirled around like a wheel upon an axis, or like a top. ... 2. Anything which whirls around, or in which persons or things are whirled about, as a frame with seats or wooden horses. 'With a whirligig of jubilant mosquitoes spinning about each head.' (G. W. Cable) ... 3. A mediaeval instrument for punishing petty offenders, …

whirlpool
1. An eddy or vortex of water; a place in a body of water where the water moves round in a circle so as to produce a depression or cavity in the center, into which floating objects may be drawn; any body of water having a more or less circular motion caused by its flowing in an irregular channel, by the coming together of opposing currents, or the …

whirlwind
1. A violent windstorm of limited extent, as the tornado, characterised by an inward spiral motion of the air with an upward current in the center; a vortex of air. It usually has a rapid progressive motion. 'The swift dark whirlwind that uproots the woods. And drowns the villages.' (Bryant) ... Some meteorologists apply the word whirlwind to the la …

whisk
1. The act of whisking; a rapid, sweeping motion, as of something light; a sudden motion or quick puff. 'This first sad whisk Takes off thy dukedom; thou art but an earl.' (J. Fletcher) ... 2. A small bunch of grass, straw, twigs, hair, or the like, used for a brush; hence, a brush or small besom, as of broom corn. ... 3. A small culinary instrument …

whiskey
An intoxicating liquor distilled from grain, potatoes, etc, especially in Scotland, Ireland, and the United States. In the United States, whisky is generally distilled from maize, rye, or wheat, but in Scotland and Ireland it is often made from malted barley. Bourbon whisky, corn whisky made in Bourbon County, Kentucky. Crooked whisky. See Crooked. …

whisky
An alcoholic liquid obtained by the distillation of the fermented mash of wholly or partly malted cereal grains, containing 47 to 53% by volume of C2H5OH, at 15.56°C; it must have been stored in charred wood containers for not less than 2 years. The various grains used in the manufacture of whisky are barley, maise, rye, and wheat. ... Origin: Gael, …

whisper
1. To speak softly, or under the breath, so as to be heard only by one near at hand; to utter words without sonant breath; to talk without that vibration in the larynx which gives sonorous, or vocal, sound. See Whisper. ... 2. To make a low, sibilant sound or noise. 'The hollow, whispering breeze.' (Thomson) ... 3. To speak with suspicion, or timorou …

whispered bronchophony
whispered pectoriloquy ...

whispering pectoriloquy
Pectoriloquy of whispered sounds in the same fashion as that of voice sounds. ... Synonym: whispered bronchophony. ... (05 Mar 2000) ...

whistle
1. To make a kind of musical sound, or series of sounds, by forcing the breath through a small orifice formed by contracting the lips; also, to emit a similar sound, or series of notes, from the mouth or beak, as birds. 'The weary plowman leaves the task of day, And, trudging homeward, whistles on the way.' (Gay) ... 2. To make a shrill sound with a …

whistle-tip catheter
A catheter with an opening at the end and side. ... (05 Mar 2000) ...

whistler
<physics> A wave in a plasma which propagates parallel to the magnetic field produced by currents outside the plasma at a frequency less than that of the electron cyclotron frequency, and which is circularly polarized, rotating in the same sense as the electrons in the plasma (about the magnetic field), also known as the electron cyclotron wa …

whistling deformity
Deformity caused by insufficient tissue in the lower border of a repaired cleft lip, giving the appearance of whistling. ... (05 Mar 2000) ...

whistling face syndrome
Synonym for craniocarpotarsal dystrophy ... Congenital association of skeletal defects (ulnar deviation of hands with camptodactyly, talipes equinovarus, and frontal bone defects) and characteristic facies (protrusion of lips as in whistling, sunken eyes with hypertelorism, and small nose); autosomal dominant inheritance. ... Synonym: craniocarpotars …

whistling rale
Synonym for sibilant rale ... A whistling sound caused by air moving through a viscid secretion narrowing the lumen of a bronchus. ... Synonym: whistling rale. ... (05 Mar 2000) ...

white
1. Reflecting to the eye all the rays of the spectrum combined; not tinted with any of the proper colours or their mixtures; having the colour of pure snow; snowy; the opposite of black or dark; as, white paper; a white skin. 'Pearls white.' 'White as the whitest lily on a stream.' (Longfellow) ... 2. Destitute of colour, as in the cheeks, or of the …

white arsenic
Synonym for arsenic trioxide ... As2O3;dissolves in water to give arsenous acid, H3AsO3; used in the treatment of skin diseases and malaria, and as a tonic; also used externally as a caustic. ... Synonym: arsenous oxide, white arsenic. ... (05 Mar 2000) ...

white beeswax
Synonym for white wax ... Yellow wax bleached by being rolled very thin and exposed to the light and air, or bleached by chemical oxidants; same uses as yellow wax. ... Synonym: bleached wax, white beeswax. ... (05 Mar 2000) ...

white bile
Designating the relatively clear, almost colourless, clear viscid fluid that occurs in the gallbladder, intestines, or both as a result of obstruction of the bile ducts in various sites; actually the secretion of the mucous membrane, without the usual colour resulting from bile pigments. ... Synonym: leukobilin. ... (05 Mar 2000) ...

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. Elevated counts can be seen in c …

white blood cell cast
A urinary cast composed of polymorphonuclear leukocytes, characteristic of tubulointerstitial disease, especially pyelonephritis. ... (05 Mar 2000) ...

white blood cell count
<haematology> A laboratory test which measures the number of white blood cells per cubic millimetre of blood. ... 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. Elevated counts can be seen in cases of inflamma …

white blood cell differential
<haematology> The white blood cell differential is a percentage of each type of white blood cell based on a count of 100 white cells. ... A change in the white blood cell type (to neutrophils or bands) can indicate a bacterial infection. Neutrophils, bands, lymphocytes, monocytes, basophils and eosinophils are all included. ... (13 Nov 1997) …

white blood cells
White blood cells (WBCs) are cells which circulate in the blood and lymphatic system and harbor in the lymph glands and spleen. They are part of the immune system responsible for both directly (t cells and macrophages) and indirectly (B-cells producing antibodies) attacking foreign invaders of the body. ... (12 Dec 1998) ...

white cell cast
A cast in the urine composed of white blood cells. ... (05 Mar 2000) ...

white commissure
A narrow band of white substance bordering on the anterior median fissure of the spinal cord in front of the anterior gray commissure, and consisting of nerve fibres crossing over from one half of the spinal cord to the other. ... Synonym: commissura alba, anterior white commissure, commissura ventralis alba, ventral white column. ... (05 Mar 2000)
white corpuscle
Any type of leukocyte. ... (05 Mar 2000) ...

white diarrhoea
Synonym for pullorum disease ... An infectious disease of chicks and other young birds caused by the bacterium Salmonella pullorum, which is carried in the ovaries of adult hens and appears in the eggs; in incubator-hatched birds, the disease usually involves the lungs and air sacs, but often spreads in flocks of young birds as an alimentary tract i …

white fat
Synonym for adipose tissue ... <anatomy> Connective tissue that has been specialised to store fat. ... See: adipocyte. ... (25 Jun 1999) ...

white fibre
White mammalian muscle fibres; larger in diameter than red fibres they have less myoglobin, sarcoplasm, and mitochondria, and contract more quickly. ... Synonym: collagen fibre. ... (05 Mar 2000) ...

white fingers
An occupational disease occurring in operators of pneumatic hammers who are exposed to cold. ... (05 Mar 2000) ...

white gangrene
Death of a part accompanied by the formation of grayish white sloughs. ... Synonym: leukonecrosis. ... (05 Mar 2000) ...

white graft
Rejection of a skin allograft so acute that vascularization never occurs. ... (05 Mar 2000) ...

white infarct
Synonym for anaemic infarct ... An infarct in which little or no bleeding into tissue spaces occurs when the blood supply is obstructed. ... Synonym: pale infarct, white infarct. ... (05 Mar 2000) ...

white lead
Synonym for lead carbonate ... A heavy white powder that is insoluble in water; occasionally, it is used to relieve irritation in dermatitis, but it is used largely in the manufacture of paint and in the arts and is thus productive of lead poisoning. ... Synonym: ceruse, white lead. ... (05 Mar 2000) ...

white leg
Synonym for phlegmasia alba dolens ... An extreme edematous swelling of the leg following childbirth, due to thrombosis of the iliofemoral veins. ... Synonym: leukophlegmasia dolens, milk leg, puerperal phlebitis, thrombotic phlegmasia, white leg. ... (05 Mar 2000) ...

white level
<microscopy> Also reference white level. The IEEE scale, or voltage level, of the video picture signal that corresponds to a specified maximum limit for white peaks. ... (05 Aug 1998) ...

white line
A pale streak appearing within 30 to 60 seconds after stroking the skin with a fingernail, and lasting for several minutes; regarded as a sign of diminished arterial tension. ... Synonym: Sergent's white line. ... (05 Mar 2000) ...

white line of anal canal
A bluish pink, narrow, wavy zone in the mucosa of the anal canal below the pectinate line at the level of the interval between the subcutaneous part of the external sphincter and the lower border of the internal sphincter, said to be palpable. ... Synonym: Hilton's white line. ... (05 Mar 2000) ...

white line of frankel
<radiology> Dense zone of provisional calcification at edge of metaphysis, just beneath physis seen in scurvy ... (12 Dec 1998) ...

white line of Toldt
Lateral reflection of posterior parietal pleura of abdomen over the mesentery of the ascending and descending colon. ... Junction of parietal peritoneum with Denonvillieri's fascia. ... (05 Mar 2000) ...

white matter
<anatomy> Brain tissue composed of myelin-coated nerve cell fibres. White matter carries information between the nerve cells in the brain and spinal cord. ... The inner portion of the cerebrum is composed of white matter. ... See: grey matter. ... (13 Nov 1997) ...

white mercuric precipitate
Synonym for ammoniated mercury ... Used in ointment for the treatment of skin diseases. ... Synonym: ammoniated mercuric chloride, white mercuric precipitate. ... (05 Mar 2000) ...

white muscle
<anatomy> A rapid or fast-twitch muscle in which pale large 'white' fibres predominate; mitochondria and myoglobin are relatively sparse compared with red muscle; involved in phasic contraction. ... (05 Mar 2000) ...

white muscle disease
A myodegeneration most frequent in calves and lambs whose dams have been fed during gestation or longer on feeds, especially legumes, grown in certain areas where selenium is either deficient or unavailable in the soil. It has been recorded in many countries. It has been produced experimentally in several species of animals on low-selenium intake. …

white mustard
The ripe seeds of Brassica (Sinapis) alba; less pungent than black mustard, but with the same constituents and uses. ... (05 Mar 2000) ...

white piedra
<microbiology> A fungal infection (tinea albigena) caused by the yeast Trichosporon beigelii that forms light-coloured nodules on the beard and mustache. ... (13 Nov 1997) ...

white pine
The dried inner bark of Pinus strobus, used as an ingredient in cough syrups. ... (05 Mar 2000) ...

white pitch
Synonym for Burgundy pitch ... A resinous exudation from the spruce fir or Norway spruce, Picea excelsa; has been used as a counterirritant in the form of a plaster. ... Synonym: white pitch. ... (05 Mar 2000) ...

white pulp
That part of the spleen that consists of nodules and other lymphatic concentrations. ... (05 Mar 2000) ...

white pupillary reflex
Synonym for leukocoria ... Reflection from a white mass within the eye giving the appearance of a white pupil. ... Synonym: leukokoria, white pupillary reflex. ... Origin: Leuko-white, + G. Kore, pupil ... (05 Mar 2000) ...

white rami communicantes
Short nerves arising from the initial portion of the ventral primary rami of the thoracic and upper lumbar spinal nerves through which all presynaptic sympathetic nerve fibres must pass to reach the sympathetic trunks; also conveyed by the white rami communicans are visceral afferent (sensory) fibres which were conveyed to the sympathetic trunks in …

white reaction
The response seen in many individuals after the skin is lightly stroked with a blunt instrument; it is attributed to capillary action. ... (05 Mar 2000) ...

white soft paraffin
white petrolatum ...

white sponge nevus
An autosomal dominant condition of the oral cavity characterised by soft, white or opalescent, thickened and corrugated folds of mucous membrane; other mucosal sites are occasionally involved simultaneously. ... Synonym: familial white folded dysplasia, oral epithelial nevus. ... (05 Mar 2000) ...

white spot
Synonym for macula albida ... Gray-white or white, rounded or irregularly shaped, slightly opaque patches or spots that are sometimes observed postmortem in the epicardium, especially in middle-aged or older persons; they result from fibrous thickening, and sometimes hyalinization, of the epicardium; similar lesions may also occur in the visceral la …

white spot disease
Synonym for morphea guttata ... Small discrete, white, waxy, indurated lesions due to localised degenerative changes in the fibrous tissue. ... Synonym: white spot disease. ... (05 Mar 2000) ...

white substance
Synonym for white matter ... <anatomy> Brain tissue composed of myelin-coated nerve cell fibres. White matter carries information between the nerve cells in the brain and spinal cord. ... The inner portion of the cerebrum is composed of white matter. ... See: grey matter. ... (13 Nov 1997) ...

white thrombus
A thrombus of opaque dull white colour composed essentially of blood platelets. ... Synonym: pale thrombus. ... (05 Mar 2000) ...

white turpentine
Turpentine from Pinus palustris. ... (05 Mar 2000) ...

white wax
Yellow wax bleached by being rolled very thin and exposed to the light and air, or bleached by chemical oxidants; same uses as yellow wax. ... Synonym: bleached wax, white beeswax. ... (05 Mar 2000) ...

white yolk
Yolk consisting of much finer particles than those of yellow yolk; thin layers of it lie between the zones of yellow yolk and form the latebra. ... (05 Mar 2000) ...

white-matter disease
<radiology> Demyelinating (myelinoclastic), destruction of existing myelin, acquired diseases with inflammatory characteristics, includes: MS, PML, encephalomyelitis, also may be due to anoxia, infarct, tumour, radiation dysmyelinating, abnormal myelin formation or maintenance, two groups: primary white-matter diseases: leukodystrophies, invo …

white-out syndrome
<syndrome> A psychosis which occurs in Arctic explorers or others similarly exposed to the stimulus deprivation of a snow-clad environment. ... See: sensory deprivation. ... (05 Mar 2000) ...

White, Paul Dudley
<person> U.S. Cardiologist, 1886-1973. ... See: Lee-White method, Wolff-Parkinson-White syndrome. ... (05 Mar 2000) ...

whitefish
<zoology> Any one of several species of Coregonus, a genus of excellent food fishes allied to the salmons. They inhabit the lakes of the colder parts of North America, Asia, and Europe. The largest and most important American species (C. Clupeiformis) is abundant in the Great Lakes, and in other lakes farther north. Called also lake whitefish …

whitegraft reaction
An immune reaction to a tissue graft that results in failure of graft vascularization and ensuing rejection. ... (05 Mar 2000) ...

Whitehead deformity
Circumferential mucosal ectropion at the anus following Whitehead's operation. ... (05 Mar 2000) ...