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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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Svedberg<unit> A unit for measuring the rate at which a particle sediments in a centrifuge. ... The unit applied to the sedimentation coefficient of a particle in a high speed or ultracentrifuge. ... S= rate of sedimentation x 1/ rho exp2r ... Where rho is the speed of rotation in radians per second and r is the radius to a chosen point in the centrifug …
Svedberg equationSee: sedimentation constant. ... (05 Mar 2000) ...
Svedberg of flotationSynonym for flotation constant ... Characteristic sedimentation behaviour of a lipoprotein fraction of plasma in a centrifugal field in a medium of appropriate density, achieved by adding a salt or D2O to the plasma. ... Synonym: negative S, Svedberg of flotation. ... (05 Mar 2000) ...
Svedberg unitA sedimentation constant of 1 × 10-13 seconds. ... (05 Mar 2000) ...
Svedberg, Theodor<person> Swedish chemist and Nobel laureate, 1884-1971. ... See: Svedberg equation, Svedberg of flotation, Svedberg unit. ... (05 Mar 2000) ...
swabA wad of cotton, gauze, or other absorbent material attached to the end of a stick or clamp, used for applying or removing a substance from a surface. ... (05 Mar 2000) ...
swage1. To fuse suture thread to suture needles. ... 2. To shape metal by hammering or adapting it onto a die, often by using a counterdie. ... Origin: Old F. Souage ... (05 Mar 2000) ...
swagger1. To walk with a swaying motion; hence, to walk and act in a pompous, consequential manner. 'A man who swaggers about London clubs.' (Beaconsfield) ... 2. To boast or brag noisily; to be ostentatiously proud or vainglorious; to bluster; to bully. 'What a pleasant it is . . . To swagger at the bar!' (Arbuthnot) 'To be great is not . . . To swagger a …
swainsonine<chemical> Fungal alkaloid that inhibits the mannosidase in the Golgi that is involved in processing the oligosaccharide chains of glycoproteins. ... (18 Nov 1997) ...
swale<ecology> A hollow or depression, especially one in wet, marshy ground. ... (19 Jan 1998) ...
swallow1. To take into the stomach; to receive through the gullet, or oesophagus, into the stomach; as, to swallow food or drink. 'As if I had swallowed snowballs for pills.' (Shak) ... 2. To draw into an abyss or gulf; to ingulf; to absorb usually followed by up. 'The earth opened her mouth, and swallowed them up, and their houses.' (Num. Xvi. 32) ... 3. T …
swallow syncopeFaintness or unconsciousness upon swallowing. This is nearly always due to excessive vagal effect on the heart that may already have bradycardia or atrioventricular block. ... (05 Mar 2000) ...
swallowing reflexThe act of swallowing (second stage) induced by stimulation of the palate, fauces, or posterior pharyngeal wall. ... Synonym: deglutition reflex, pharyngeal reflex. ... (05 Mar 2000) ...
swallowing thresholdThe moment that the act of swallowing begins after the mastication of food, the critical moment of reflex action initiated by minimum stimulation, prior to the act of deglutition. ... (05 Mar 2000) ...
swallowtail1. A kind of tenon or tongue used in making joints. See Dovetail. ... 2. <botany> A species of willow. ... 3. An outwork with converging sides, its head or front forming a reentrant angle; so called from its form. Called also priestcap. ... 4. A swallow-tailed coat. 'This Stultz coat, a blue swallowtail, with yellow buttons.' (Thackeray) ... 5. A …
swamp<ecology> Spongy land, low ground filled with water, a wooded area having surface water much of the time. ... (19 Jan 1998) ...
swamp feverSynonym for equine infectious anaemia ... <veterinary> virology> Viral disease of horses caused by the equine infectious anaemia virus (eiav; infectious anaemia virus, equine). It is characterised by intermittent fever, weakness, and anaemia. Chronic infection consists of acute episodes with remissions. ... (12 Dec 1998) ...
swamp fever virusSynonym for equine infectious anaemia virus ... <virology> A retrovirus, of the Lentivirinae subfamily, and the cause of equine infectious anaemia. ... Synonym: swamp fever virus. ... (05 Mar 2000) ...
swamp itchSynonym for cutaneous ancylostomiasis ... Cutaneous larva migrans caused by larvae of hookworms. ... Synonym: ancylostoma dermatitis, ancylostomiasis cutis, coolie itch, dew itch, ground itch, swamp itch, swimmer's itch, toe itch, water itch, water sore. ... (05 Mar 2000) ...
swan1. <zoology> Any one of numerous species of large aquatic birds belonging to Cygnus, Olor, and allied genera of the subfamily Cygninae. They have a large and strong beak and a long neck, and are noted for their graceful movements when swimming. most of the northern species are white. In literature the swan was fabled to sing a melodious song, …
Swan-Ganz catheter<equipment> A special haemodynamic monitoring device (long thin catheter) that is introduced into a large vein (in the neck, chest or groin) and advanced through the right heart to the pulmonary artery. ... Measurements of cardiac function and blood pressure can be made with this device that can greatly increase the physician's diagnostic abil …
swan-neck deformityHyperextension of the proximal interphalangeal joint with flexion of the distal interphalangeal joint of the finger. ... (05 Mar 2000) ...
sward1. Skin; covering. ... 2. The grassy surface of land; that part of the soil which is filled with the roots of grass; turf. 'The sward was trim as any garden lawn.' (Tennyson) Sward pork, bacon in large fitches. ... Origin: AS. Sweard skin, covering; akin to OFries. Swarge, D. Zwoord, G. Schwarte, Icel. Svorr skin, sward of the earth. ... Source: Webst …
swarmTo climb a tree, pole, or the like, by embracing it with the arms and legs alternately. See Shin. 'At the top was placed a piece of money, as a prize for those who could swarm up and seize it.' (W. Coxe) ... Origin: Cf. Swerve. ... 1. To collect, and depart from a hive by flight in a body; said of bees; as, bees swarm in warm, clear days in summer.
swarming
A progressive spreading by motile bacteria over the surface of a solid medium. ... Origin: A.S. Swearm ... (05 Mar 2000) ...
swayback
Congenital locomotor ataxia of lambs, thought to be associated with copper deficiency. It is characterised clinically by progressive incoordination of the hind limbs and pathologically by disruption of neuron and myelin development in the central nervous system. It is caused by a deficiency of metabolizable copper in the ewe during the last half of …
swaziland
A kingdom in southern africa, west of mozambique. Its capital is mbabane. The area was settled by the swazi branch of the zulu nation in the early 1880's, with its independence guaranteed by the british and transvaal governments in 1881 and 1884. With limited self-government introduced in 1962, it became independent in 1968. Swazi is the zulu name …
Swe1 kinase
<enzyme> Analog of wee1 protein; phosphorylates tyr residue 19 of cdc28 and inhibits its activity; from saccharomyces cerevisiae ... Registry number: EC 2.7.1.- ... Synonym: swe1 gene product ... (26 Jun 1999) ...
swear
1. To affirm or utter a solemn declaration, with an appeal to God for the truth of what is affirmed; to make a promise, threat, or resolve on oath; also, to affirm solemnly by some sacred object, or one regarded as sacred, as the Bible, the Koran, etc. 'Ye shall swear by my name falsely.' (Lev. Xix. 12) 'I swear by all the Roman gods.' (Shak) ... 2. …
sweat
1. To excrete sensible moisture from the pores of the skin; to perspire. ... 2. To perspire in toil; to work hard; to drudge. 'He 'd have the poets sweat.' (Waller) ... 3. To emit moisture, as green plants in a heap. ... Origin: OE. Sweten, AS. Swaetan, fr. Swat, n, sweat; akin to OFries. & OS. Swet, D. Zweet, OHG. Sweiz, G. Schweiss, Icel. Sviti, …
sweat chloride test
Synonym for sweat test ... <investigation> A test used to diagnose cystic fibrosis. Two metal electrodes are placed on the skin of an arm or leg. ... Very low voltage electricity is used (only a tingling is felt) to measure the concentration of sodium and chloride in the sweat. ... (19 Jan 1998) ...
sweat duct
Synonym for duct of sweat glands ... The superficial portion of the sweat gland that passes through the corium and epidermis, opening on the surface by the porus sudoriferus or sweat pore. ... Synonym: ductus sudoriferus, sudoriferous duct, sweat duct. ... (05 Mar 2000) ...
sweat gland carcinoma
<tumour> Usually a solitary tumour, nodular and fixed to the skin and underlying structure, having slow growth for long periods followed by rapid growth and dissemination. ... (05 Mar 2000) ...
sweat gland diseases
Diseases of the sweat glands. ... (12 Dec 1998) ...
sweat glands
The coil glands of the skin that secrete the sweat. ... Synonym: glandulae sudoriferae, Boerhaave's glands, perspiratory glands, sudoriferous glands. ... (05 Mar 2000) ...
sweat pore
The surface opening of the duct of a sweat gland. ... Synonym: porus sudoriferus, porus, pore, skin pore. ... (05 Mar 2000) ...
sweat test
<investigation> A test used to diagnose cystic fibrosis. Two metal electrodes are placed on the skin of an arm or leg. ... Very low voltage electricity is used (only a tingling is felt) to measure the concentration of sodium and chloride in the sweat. ... (19 Jan 1998) ...
sweating
From Sweat, Sweating bath, a bath producing sensible sweat; a stove or sudatory. Sweating house, a house for sweating persons in sickness. Sweating iron, a kind of knife, or a piece of iron, used to scrape off sweat, especially from horses; a horse scraper. Sweating room. A room for sweating persons. ... <medicine> A febrile epidemic disease w …
sweating sickness
A disease characterised by fever and profuse sweating and associated with high mortality. It occurred in epidemic form five times in the fifteenth and sixteenth centuries in england, first in 1485 and last in 1551. The disease tended to occur during the summer and early autumn, attacking the relatively affluent adult male population. The aetiology …
sweating test
A test for locating the level of a lesion in the spinal cord; when the body is heated or the patient is given a diaphoretic, sweat secretion is absent below the level of the lesion. ... (05 Mar 2000) ...
sweating, gustatory
Excessive sweating of the forehead, upper lip, perioral region, or sternum subsequent to ingestion of hot or spicy foods. It may also be caused by tumours or other injuries to the parotid gland, as in auriculotemporal syndrome (frey's disease). In this condition, thought to be due to some involvement of the auriculotemporal nerve, a red area and sw …
sweaty feet syndrome
Synonym for isovaleric acidemia ... A disorder of leucine metabolism characterised by the excessive production of isovaleric acid upon protein ingestion or during infectious episodes; severe metabolic acidosis results from the large quantities of acid formed; autosomal recessive inheritance; due to a deficiency of isovaleryl-CoA dehydrogenase. ... Sy …
Swediauer, Francois
<person> Austrian physician, 1748-1824. ... See: Swediauer's disease. ... (05 Mar 2000) ...
Swediauer's disease
Synonym for Albert's disease ... Achillobursitis involving inflammation of the bursa between the Achilles tendon and the os calcis. ... Synonym: Swediauer's disease. ... (05 Mar 2000) ...
Swedish gymnastics
Synonym for Swedish movements ... A form of kinesitherapy in which certain systematised movement's of the body and limbs are regulated by resistance made by an attendant. ... Synonym: Swedish gymnastics. ... (05 Mar 2000) ...
Swedish movements
A form of kinesitherapy in which certain systematised movement's of the body and limbs are regulated by resistance made by an attendant. ... Synonym: Swedish gymnastics. ... (05 Mar 2000) ...
sweeney
Disuse or neurogenic atrophy of the supraspinatus and infraspinatus muscles in horses. ... (05 Mar 2000) ...
sweep
1. To pass a broom across (a surface) so as to remove loose dirt, dust, etc.; to brush, or rub over, with a broom for the purpose of cleaning; as, to sweep a floor, the street, or a chimney. Used also figuratively. 'I will sweep it with the besom of destruction.' (Isa. Xiv. 23) ... 2. To drive or carry along or off with a broom or a brush, or as if …
sweet
1. Having an agreeable taste or flavor such as that of sugar; saccharine; opposed to sour and bitter; as, a sweet beverage; sweet fruits; sweet oranges. ... 2. Pleasing to the smell; fragrant; redolent; balmy; as, a sweet rose; sweet odour; sweet incense. 'The breath of these flowers is sweet to me.' (Longfellow) ... 3. Pleasing to the ear; soft; mel …
sweet birch oil
Synonym for methyl salicylate ... Aromatic methyl ester of salicylic acid, produced synthetically or distilled from Gaultheria procumbens (family Ericaceae) or from Betula lenta (family Betulaceae). ... Used as a component of liniments, used externally and internally for the treatment of various forms of rheumatismit produces heat when rubbed into th …
sweet clover disease
A haemorrhagic disease, due to dicumarol which causes marked reduction in prothrombin, occurring in cattle fed on sweet clover fodder, spoiled during curing. ... (05 Mar 2000) ...
sweet clover poisoning
A haemorrhagic disease of herbivores, especially cattle, occurring as a result of consuming damaged hay or silage containing sweet clover, but never as a result of eating freshly cut plants or pasturing on sweet clover. The causative agent is the anticoagulant, dicumarol, which is formed in the spoilage process from the harmless coumarin. ... (05 Ma …
sweet itch
A pruritic dermatosis of horses caused by an allergic reaction to midges of the genus Culicoides. ... (05 Mar 2000) ...
sweet precipitate
Synonym for calomel ... HgCl;mild mercury chloride; mercury monochloride, protochloride, or subchloride; has been used as an intestinal antiseptic and laxative; replaced by safer agents. ... Synonym: mercurous chloride, sweet precipitate. ... Origin: Mediev. L., fr. G. Kalos, beutiful, + melas, black ... (05 Mar 2000) ...
Sweet, Robert Douglas
<person> 20th century English dermatologist. ... See: Sweet's disease. ... (05 Mar 2000) ...
Sweet's disease
Synonym for acute febrile neutrophilic dermatosis ... A rare dermatosis, predominant in women, of rapid onset and characterised by plaque-like lesions, usually multiple, on the face, neck, and upper extremities, accompanied by conjunctivitis, mucosal lesions, fever, malaise, arthralgia, and peripheral blood neutrophilia in many cases; biopsy reveals …
Sweet's syndrome
<syndrome> This rare condition is characterised by red-brown plaques and nodules that are frequently painful and occur primarily on the head, neck and upper extremities. ... The patients will also have fever and increased white blood cell counts (neutrophils). In approximately 10% of the patients there is an associated malignancy, most commonl …
sweetening agents
Substances that sweeten food, beverages, medications, etc., such as sugar, saccharine or other low-calorie synthetic products. ... (12 Dec 1998) ...
swell
1. The act of swelling. ... 2. Gradual increase. Specifically: Increase or augmentation in bulk; protuberance. ... Increase in height; elevation; rise. 'Little River affords navigation during a swell to within three miles of the Miami.' (Jefferson) ... Increase of force, intensity, or volume of sound. 'Music arose with its voluptuous swell.' (Byron)
swellhead
Synonym: lecheguilla poisoning. ... 2. In turkeys, distention of the sinuses due to accumulation of exudate in infectious sinusitis. ... (05 Mar 2000) ...
swelling
1. The act of that which swells; as, the swelling of rivers in spring; the swelling of the breast with pride. 'Rise to the swelling of the voiceless sea.' (Coleridge) ... 2. <medicine> A protuberance; a prominence; especially, an unnatural prominence or protuberance; as, a scrofulous swelling. 'The superficies of such plates are not even, but …
swerve
1. To stray; to wander; to rope. 'A maid thitherward did run, To catch her sparrow which from her did swerve.' (Sir P. Sidney) ... 2. To go out of a straight line; to deflect. 'The point [of the sword] swerved.' ... 3. To wander from any line prescribed, or from a rule or duty; to depart from what is established by law, duty, custom, or the like; to …
swift
1. The current of a stream. ... 2. <ornithology> Any one of numerous species of small, long-winged, insectivorous birds of the family Micropodidae. In form and habits the swifts resemble swallows, but they are destitute of complex vocal muscles and are not singing birds, but belong to a widely different group allied to the humming birds. ... Th …
Swift's disease
Synonym for acrodynia ... Pain in the extremities. ... (12 Dec 1998) ...
swim
1. To pass or move over or on by swimming; as, to swim a stream. 'Sometimes he thought to swim the stormy main.' (Dryden) ... 2. To cause or compel to swim; to make to float; as, to swim a horse across a river. ... 3. To immerse in water that the lighter parts may float; as, to swim wheat in order to select seed. ... 1. To be supported by water or oth …
swim bladder
Synonym for air bladder ... 1. <anatomy> An air sac, sometimes double or variously lobed, in the visceral cavity of many fishes. It originates in the same way as the lungs of air-breathing vertebrates, and in the adult may retain a tubular connection with the pharynx or oesophagus. ... 2. A sac or bladder full of air in an animal or plant; also …
swim-up fry
<marine biology> Salmonid fry beginning to actively swim in search of food. ... (19 Jan 1998) ...
swimmer's ear
Synonym for otitis externa ... Infection and inflammation of the external ear canal. ... Symptoms include earache, ear discharge and decreased hearing. ... (27 Sep 1997) ...
swimmer's itch
Synonym for cutaneous ancylostomiasis ... Cutaneous larva migrans caused by larvae of hookworms. ... Synonym: ancylostoma dermatitis, ancylostomiasis cutis, coolie itch, dew itch, ground itch, swamp itch, swimmer's itch, toe itch, water itch, water sore. ... (05 Mar 2000) ...
swimming
1. That swims; capable of swimming; adapted to, or used in, swimming; as, a swimming bird; a swimming motion. ... 2. Suffused with moisture; as, swimming eyes. ... <zoology> Swimming bell, any one of numerous species of marine crabs, as those of the family Protunidae, which have some of the joints of one or more pairs of legs flattened so as to …
swimming pool conjunctivitis
A non-specific red-eye that can be caused by pool chlorination, adenovirus, and rarely, Chlamydia. ... (05 Mar 2000) ...
swimming pool granuloma
Localised nodular skin inflammation (small reddish raised areas of skin) caused by a bacterium called mycobacterium marinum. Swimming pool granuloma is typically acquired by occupational or recreational exposure to salt or fresh water, often resulting from minor trauma during caring for aquariums. The diagnosis is suggested by the history of exposu …
swimming speed
<marine biology> Swimming speeds of stream fish vary from essentially zero to over six metres per second, depending upon species, size, and activity. Three categories of performance are generally recognised: ... 1. Burst (darting) speed: The speed that a fish can maintain for a very short time, generally 5 to 10 seconds, without gross variatio …
swimming test
A test for activity of adrenal cortical preparations; two days after adrenalectomy, rats are placed in water and the time during which they can swim is recorded; they are then injected with the material to be tested; the response is termed 'positive' if the swimming time is doubled. ... (05 Mar 2000) ...
swine
<zoology> Any animal of the hog kind, especially one of the domestical species. Swine secrete a large amount of subcutaneous fat, which, when extracted, is known as lard. The male is specifically called boar, the female, sow, and the young, pig. See Hog. 'A great herd of swine.' Swine grass, the sow thistle. ... Origin: OE. Swin, AS. Swin; aki …
swine diseases
Diseases of domestic swine and of the wild boar of the genus sus. ... (12 Dec 1998) ...
swine dysentery
An acute haemorrhagic colitis of swine, often accompanied by gastritis; the small intestines usually are not involved; its primary cause is Treponema hyodysenteriae, and it has a high mortality rate, especially among feeder pigs. ... (05 Mar 2000) ...
swine encephalitis virus
A coronavirus, in the family Coronaviridae, that causes swine encephalitis. ... (05 Mar 2000) ...
swine erysipelas
An acute and chronic contagious disease of young pigs caused by erysipelothrix insidiosa. ... (12 Dec 1998) ...
swine fever
Synonym for hog cholera ... An acute, highly contagious disease affecting swine of all ages and caused by the hog cholera virus. It has a sudden onset with high morbidity and mortality. ... (12 Dec 1998) ...
swine fever virus
Synonym for hog cholera virus ... A species of the pestivirus genus causing exceedingly contagious and fatal haemorrhagic disease of swine. ... (12 Dec 1998) ...
swine icteroanaemia
An infectious disease of swine manifested by icterus, anaemia, and emaciation; caused by Eperythrozoon suis. ... (05 Mar 2000) ...
swine influenza
An acute respiratory disease of swine caused by strains of influenza virus type A; it is believed to have become adapted to swine in the United States during the great human pandemic in 1918; fatal cases, as in such cases of pandemic influenza in man, are commonly associated with secondary bacterial pneumonia. ... (05 Mar 2000) ...
swine influenza viruses
Strains of influenza virus type A which cause influenza of swine and can infect humans. ... (05 Mar 2000) ...
swine pest
Synonym for hog cholera ... An acute, highly contagious disease affecting swine of all ages and caused by the hog cholera virus. It has a sudden onset with high morbidity and mortality. ... (12 Dec 1998) ...
swine porphyria
Porphyria as a dominant trait seen in swine. ... (05 Mar 2000) ...
swine vesicular disease
<virology> An enterovirus infection of swine clinically indistinguishable from foot-and-mouth disease, vesicular stomatitis, and vesicular exanthema. ... (12 Dec 1998) ...
swine vesicular disease virus
<virology> A porcine enterovirus causing vesicular disease in swine. ... (05 Mar 2000) ...
swine, miniature
Genetically developed small pigs for use in biomedical research. There are several strains - yucatan miniature, sinclair miniature, and minnesota miniature. ... (12 Dec 1998) ...
swineherd's disease
A leptospirosis caused by a leptospira occurring in those who attend swine or who are occupied in the slaughtering or processing of pork, and characterised by aches and pains throughout the body, fever, headache, dizziness, and nausea. ... (05 Mar 2000) ...
swinepox
<infectious disease> A variety of the chicken pox, with acuminated vesicles containing a watery fluid; the water pox. A usually mild disease occurring in swine, caused by swinepox virus (family Poxviridae) and characterised by papulopustular lesions; usually transmitted by lice. ... (05 Mar 2000) ...
swinepox virus
<virology> A poxvirus distinct from vaccinia virus and the cause of swinepox; the pig louse plays an important role in transmission. ... (05 Mar 2000) ...
swing
1. The act of swinging; a waving, oscillating, or vibratory motion of a hanging or pivoted object; oscillation; as, the swing of a pendulum. ... 2. Swaying motion from one side or direction to the other; as, some men walk with a swing. ... 3. A line, cord, or other thing suspended and hanging loose, upon which anything may swing; especially, an appar …
swinging light test
Synonym for alternating light test ... Test to detect a relative afferent defect in one eye by watching pupillary movements. ... With the patient fixing in the distance, the light is held on each eye for about a second, and quickly moved to the other eye. Assuming no defect of the innervation to the iris sphincter in one eye (which would produce an a …
swingle
1. To clean, as flax, by beating it with a swingle, so as to separate the coarse parts and the woody substance from it; to scutch. ... 2. To beat off the tops of without pulling up the roots; said of weeds. ... Origin: See Swingel. ... A wooden instrument like a large knife, about two feet long, with one thin edge, used for beating and cleaning flax; …
Swiss 3T3 cell
<cell culture> An immortal line of fibroblast like cells established from whole trypsinised embryos of Swiss mice (not an inbred stock) under conditions that favour establishment of cells with low saturation density in culture. ... (19 Jan 1998) ...
Swiss mouse leukaemia virus
Synonym for friend virus ... A murine leukaemia virus producing leukaemia of the reticulum-cell type with massive infiltration of liver, spleen, and bone marrow. It infects dba/2 and swiss mice. ... (12 Dec 1998) ...
Swiss type agammaglobulinaemia
Synonym for severe combined immunodeficiency ... Group of rare congenital disorders characterised by impairment of both humoral and cell-mediated immunity, leukopenia, and low or absent antibody levels. It is inherited as an x-linked or autosomal recessive defect. About half of the patients with autosomal recessive scid are deficient in the enzyme a …
switch
1. To strike with a switch or small flexible rod; to whip. ... 2. To swing or whisk; as, to switch a cane. ... 3. To trim, as, a hedge. ... 4. To turn from one railway track to another; to transfer by a switch; generally with off, from, etc.; as, to switch off a train; to switch a car from one track to another. ... 5. To shift to another circuit. ... Or …
switching
1. Making a shift or exchange. ... 2. The movement of a defined region of DNA within a genome. ... Class switching, a change in the expression of the C region of an immunoglobulin heavy chain. ... (05 Mar 2000) ...
