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


vitiated air
Air containing a reduced percentage of oxygen. ... (05 Mar 2000) ...

vitiligines
The pleural of vitiligo. ... (05 Mar 2000) ...

vitiliginous
Relating to or characterised by vitiligo. ... (05 Mar 2000) ...

vitiligo
<dermatology> This disorder is characterised by regions of otherwise normal skin of nonpigmented white patches of varied sizes, often symmetrically distributed and usually bordered by hyperpigmented areas. Hair in the affected areas is usually, but not always, white. ... (27 Sep 1997) ...

vitiligo capitis
An obsolete term for alopecia areata. ... (05 Mar 2000) ...

vitiligo iridis
Small white patches in brown irides. ... (05 Mar 2000) ...

vitiligoidea
An obsolete term for xanthoma. ... Origin: vitiligo + G. Eidos, appearance ... (05 Mar 2000) ...

vitopine synthase
<chemical> Isolated from agrobacterium vitis ... Synonym: vis gene product ... (26 Jun 1999) ...

vitrectomy
<procedure> Removal of the whole or part of the vitreous body in treating endophthalmitis, diabetic retinopathy, retinal detachment, intraocular foreign bodies, and some types of glaucoma. ... (12 Dec 1998) ...

vitrein
A collagen-like protein that, with hyaluronic acid, accounts for the gel state of the vitreous humor. ... Synonym: vitrosin. ... (05 Mar 2000) ...

vitreitis
Inflammation of the corpus vitreum. ... Synonym: hyalitis. ... Origin: L. Vitreus, glassy, + G. -itis, inflammation ... (05 Mar 2000) ...

vitreo-
Vitreous. ... Origin: L. Vitreus, glassy ... (05 Mar 2000) ...

vitreo-tapetoretinal dystrophy
Autosomal recessive bilateral peripheral and central retinoschisis with pigmentary degeneration of the retina, chorioretinal atrophy, vitreous degeneration, and night blindness. ... Synonym: Favre's dystrophy. ... (05 Mar 2000) ...

vitreodentin
Dentin of a particularly brittle character. ... (05 Mar 2000) ...

vitreoretinal
Pertaining to the retina and the vitreous body. ... (05 Mar 2000) ...

vitreoretinal traction syndrome
<syndrome> Traction on the internal limiting membrane of the retina by adherent vitreous fibrils in vitreous humor detachment. ... (05 Mar 2000) ...

vitreoretinopathy
Retinopathy with vitreous complications. ... (05 Mar 2000) ...

vitreoretinopathy, proliferative
Vitreoretinal membrane shrinkage or contraction secondary to the proliferation of primarily retinal pigment epithelial cells and glial cells, particularly fibrous astrocytes, followed by membrane formation. The formation of fibrillar collagen and cellular proliferation appear to be the basis for the contractile properties of the epiretinal and vitr …

vitreous
Glasslike or hyaline, often used alone to designate the vitreous body of the eye (corpus vitreum). ... (18 Nov 1997) ...

vitreous body
The transparent gel that fills the inner portion of the eyeball between the lens (lens, crystalline) and the retina. ... (12 Dec 1998) ...

vitreous camera
Synonym for posterior segment of eyeball ... The large space between the lens and the retina; it is filled with the vitreous body. ... Synonym: camera vitrea bulbi, vitreous camera, vitreous chamber of eye. ... (05 Mar 2000) ...

vitreous cell
A cell occurring in the peripheral part of the vitreous body that may be responsible for production of hyaluronic acid and possibly of collagen. ... Synonym: hyalocyte. ... (05 Mar 2000) ...

vitreous chamber of eye
Synonym for posterior segment of eyeball ... The large space between the lens and the retina; it is filled with the vitreous body. ... Synonym: camera vitrea bulbi, vitreous camera, vitreous chamber of eye. ... (05 Mar 2000) ...

vitreous detachment
Separation of the peripheral vitreous humor from the retina. ... (05 Mar 2000) ...

vitreous haemorrhage
Haemorrhage into the vitreous body. ... (12 Dec 1998) ...

vitreous hernia
Prolapse of the vitreous humor into the anterior chamber; may follow removal or displacement of the lens from the lenticular space. ... (05 Mar 2000) ...

vitreous humor
<ophthalmology> The gel-like substance that fills the eyeball between the lens and the retina. ... (11 Nov 1997) ...

vitreous lamella
Synonym for lamina basalis choroideae ... The transparent, nearly structureless inner layer of the choroid in contact with the pigmented layer of the retina. ... Synonym: basal lamina of choroid, basal layer of choroid, Bruch's membrane, Henle's membrane, lamina vitrea, vitreous lamella, vitreous membrane. ... (05 Mar 2000) ...

vitreous membrane
A condensation of fine collagen fibres in places in the cortex of the vitreous body; formerly thought to form a membrane or capsule at its periphery. ... Synonym: lamina basalis choroideae. ... See: posterior limiting layer of cornea ... (05 Mar 2000) ...

vitreous table
The inner table of one of the cranial bones; it is more compact and harder than the outer table. ... Synonym: lamina internal ossium cranii. ... (05 Mar 2000) ...

vitreum
Synonym: vitreous body. ... Origin: L. Ntr. Of vitreus, glassy ... (05 Mar 2000) ...

vitrification
Conversion of dental porcelain (frit) to a glassy substance by heat and fusion. ... Origin: L. Vitrium, glassy, + facio, to make ... (05 Mar 2000) ...

vitriol
<chemistry> A sulphate of any one of certain metals, as copper, iron, zinc, cobalt. So called on account of the glassy appearance or luster. ... Sulphuric acid; called also oil of vitriol. So called because first made by the distillation of green vitriol. See Sulphuric acid, under Sulphuric. Blue vitriol. See Blue. Green vitriol, ferrous sulph …

vitronectin
<protein> Serum protein (70 kD) also called serum spreading factor from its activity in promoting adhesion and spreading of tissue cells in culture. Contains the cell binding sequence Arg Gly Asp (RGD) first found in fibronectin. ... (18 Nov 1997) ...

vitrosin
<protein> Old term for collagen isolated from embryonic chick vitreous. Synthesised by neural retina at early developmental stages and by cells of the vitreous body later. ... (18 Nov 1997) ...

vivacious
1. Having vigorous powers of life; tenacious of life; long-lived. 'Hitherto the English bishops have been vivacious almost to wonder. . . . But five died for the first twenty years of her [Queen Elizabeth's] reign.' (Fuller) 'The faith of Christianity is far more vivacious than any mere ravishment of the imagination can ever be.' (I. Taylor) ... 2. …

vivaria
The pleural of vivarium. ... (05 Mar 2000) ...

vivarium
Quarters in which animals are housed, particularly animals used in medical research. ... Origin: L. Vivarius, pertaining to living creatures ... (05 Mar 2000) ...

vivax fever
Synonym for vivax malaria ... <disease, microbiology> A type of malaria caused by the protozoan Plasmodium vivax, it isthe most common form of the disease, is rarely fatal but is the most difficult to cure, and is characterised by fevers that typically occur every other day. ... (11 Nov 1997) ...

vivax malaria
<disease, microbiology> A type of malaria caused by the protozoan Plasmodium vivax, it isthe most common form of the disease, is rarely fatal but is the most difficult to cure, and is characterised by fevers that typically occur every other day. ... (11 Nov 1997) ...

vivi-
Living. ... Origin: L. Vivus, alive ... (05 Mar 2000) ...

vividialysis
Removal by dialysis, as by lavage of peritoneal cavity. ... (05 Mar 2000) ...

vividiffusion
Archaic term for a method by which circulating blood may be submitted to dialysis outside the body and returned to the circulation without exposure to the air or to any noxious influences; the principle used in the performance of renal dialysis with the artificial kidney. ... Origin: vivi-+ diffusion ... (05 Mar 2000) ...

vivification
1. The act of vivifying, or the state of being vivified; restoration of life; revival. ... 2. <physiology> One of the changes of assimilation, in which proteid matter which has been transformed, and made a part of the tissue or tissue cells, is endowed with life, and thus enabled to manifest the phenomena of irritability, contractility, etc.
viviparous
1. <biology, zoology> An animal that gives birth to live offspring, as opposed to laying eggs. ... 2. <botany> Describes seeds or fruit which sprout before they fall from the parent plant. ... (09 Oct 1997) ...

viviperception
Observation of the vital processes in the organism without the aid of vivisection. ... Origin: vivi-+ perception ... (05 Mar 2000) ...

vivisect
To practice vivisection. ... (05 Mar 2000) ...

vivisection
<physiology, procedure> To dissect a live animal, this is done to observe functioning body systems (such as to observe the effects of certain stimulants or depressants on a beating heart). The animal is rendered unconscious before the vivisection is done. ... (09 Oct 1997) ...

vivisectionist
One who practices vivisection. ... (05 Mar 2000) ...

vizcacha
<zoology> A large burrowing South American rodent (Lagostomus trichodactylus) allied to the chinchillas, but much larger. Its fur is soft and rather long, mottled gray above, white or yellowish white beneath. There is a white band across the muzzle, and a dark band on each cheek. It inhabits grassy plains, and is noted for its extensive burro …

VLA protein
<protein> VLA 1 and VLA 2 were originally defined as antigens appearing on the surfaces of T lymphocytes 2-4 weeks after in vitro activation, they are now know to be part of the _ integrin family. Additional members of the subset are now known (VLA 3, VLA 4, VLA 5 and VLA 6), the _ subunits all being identical. Some of the VLA proteins are re …

Vladimiroff-Mikulicz amputation
Synonym for Mikulicz-Vladimiroff amputation ... An osteoplastic resection of the foot in which the talus and calcaneus are excised, the anterior row of tarsal bones being united to the lower end of the tibia, the articular surfaces of both being removed; the lower end of the stump is therefore the anterior portion of the foot, the patient walking th …

Vladimiroff, Vladimir
<person> Russian surgeon, 1837-1903. ... See: Mikulicz-Vladimiroff amputation, Vladimiroff-Mikulicz amputation. ... (05 Mar 2000) ...

VLDL
Synonym for very low density lipoprotein ... <biochemistry> A lipoprotein substances (combination of a fat and a protein) which acts as a carrier for cholesterol and fats (particularly triglycerides) in the bloodstream. ... Elevations in very low density lipoprotein in the bloodstream are associated with an increased risk of atherosclerosis and …

VMA
<abbreviation> Vanillylmandelic acid. ... (05 Mar 2000) ...

VMA test
Synonym for vanillylmandelic acid test ... A test for catecholamine-secreting tumours (pheochromocytoma and neuroblastoma) performed on a 24-hr urine specimen; it is based on the fact that vanillylmandelic acid is the major urinary metabolite of norepinephrine and epinephrine. ... Synonym: 3-methoxy-4-hydroxymandelic acid test, VMA test. ... (05 Mar 2 …

Vmax
<biochemistry> The maximum initial velocity of an enzyme catalysed reaction. I.e. at saturating substrate levels. ... (18 Nov 1997) ...

VMD
<abbreviation> Doctor of Veterinary Medicine. ... (05 Mar 2000) ...

VO2
Symbol for oxygen consumption. ... (05 Mar 2000) ...

VOC
See Volatile organic compounds. ... (05 Dec 1998) ...

vocabulary
The sum or the stock of words used by a language, a group, or an individual. ... (12 Dec 1998) ...

vocabulary, controlled
A means of access to information (including bibliographic records, factual data, images, collections, etc.) limited to a specified list of terms with a fixed and unalterable meaning, and from which a selection is made when cataloging, indexing, or searching books, journals, and other documents. The control is intended to avoid the scattering of rel …

vocal
1. A vocal sound; specifically, a purely vocal element of speech, unmodified except by resonance; a vowel or a diphthong; a tonic element; a tonic; distinguished from a subvocal, and a nonvocal. ... 2. A man who has a right to vote in certain elections. ... Origin: Cf. F. Vocal, LL. Vocalis. ... 1. Of or pertaining to the voice or speech; having voice …

vocal amusia
The inability to sing, although speech is intact. ... (05 Mar 2000) ...

vocal cord nodules
Small, circumscribed, bilateral, beadlike enlargements on the vocal cords caused by overuse or abuse of the voice; often reversible by voice therapy. ... Synonym: singer's nodes, singer's nodules, teachers' nodes. ... (05 Mar 2000) ...

vocal cord paralysis
Paralysis of one or both of the vocal cords. ... (12 Dec 1998) ...

vocal cords
Two small bands of muscle within the larynx. They close to prevent food from getting into the lungs, and they vibrate to produce the voice. ... (12 Dec 1998) ...

vocal fold
One of Ferrein's cords; the sharp edge of a fold of mucous membrane overlying the vocal ligament and stretching along either wall of the larynx from the angle between the laminae of the thyroid cartilage to the vocal process of the arytenoid cartilage; the vocal folds are the agents concerned in voice production. ... Synonym: plica vocalis, chorda v …

vocal fremitus
The vibration in the chest wall, felt on palpation, produced by the spoken voice. ... (05 Mar 2000) ...

vocal ligament
<anatomy> The band that extends on either side from the thyroid cartilage to the vocal process of the arytenoid cartilage; it is the thickened, free upper border of the conus elasticus of the larynx. ... Synonym: ligamentum vocale. ... (05 Mar 2000) ...

vocal muscle
Synonym for vocalis ... <anatomy, muscle> Origin, depression between the two laminae of thyroid cartilage; insertion, portions of vocal process of arytenoid; action, shortens and relaxes vocal cords; nerve supply, recurrent laryngeal; a number of the deeper and finer fibres of the thyroaryteroid muscle attached directly to the outer side of th …

vocal process
Synonym for vocal process of arytenoid cartilage ... The lower end of the anterior margin of the arytenoid cartilage to which the vocal cord is attached. ... Synonym: processus vocalis cartilaginis arytenoidei, vocal process. ... (05 Mar 2000) ...

vocal resonance
The voice sounds as heard on auscultation of the chest. ... (05 Mar 2000) ...

vocal shelf
Synonym for vocal fold ... One of Ferrein's cords; the sharp edge of a fold of mucous membrane overlying the vocal ligament and stretching along either wall of the larynx from the angle between the laminae of the thyroid cartilage to the vocal process of the arytenoid cartilage; the vocal folds are the agents concerned in voice production. ... Synony …

vocalis
<anatomy, muscle> Origin, depression between the two laminae of thyroid cartilage; insertion, portions of vocal process of arytenoid; action, shortens and relaxes vocal cords; nerve supply, recurrent laryngeal; a number of the deeper and finer fibres of the thyroaryteroid muscle attached directly to the outer side of the true vocal cord. ... S …

vocalization, animal
Vocal sounds used in animal communication. ... (12 Dec 1998) ...

vocation
1. A call; a summons; a citation; especially, a designation or appointment to a particular state, business, or profession. 'What can be urged for them who not having the vocation of poverty to scribble, out of mere wantonness make themselves ridiculous?' (Dryden) ... 2. Destined or appropriate employment; calling; occupation; trade; business; profes …

vocational education
Education for specific trades or occupations. ... (12 Dec 1998) ...

vocational guidance
Systematic efforts to assist individuals in selecting an occupation or suitable employment on the basis of aptitude, education, etc. ... (12 Dec 1998) ...

VOD
Synonym for veno-occlusive disease ... <haematology, oncology> A disease that sometimes occurs following high-dose chemotherapy or radiation, in which the blood vessels that carry blood through the liver become swollen and clogged. ... Acronym: VOD ... (12 Jan 1998) ...

Vogel's law
When a phenotype may be transmitted by various modes of mendelian inheritance, the dominant will have the least deleterious phenotype, the recessive the most, and the X-linked intermediate between the two. ... (05 Mar 2000) ...

Voges-Proskauer reaction
A chemical reaction used in testing for the production of acetyl methyl carbinol by various bacteria; potassium hydroxide is added to a 24-hour culture in a suitable medium and thoroughly mixed; the treated culture is exposed to air and is observed at intervals of 2, 12, and 24 hours; a positive reaction consists of the development of an eosin-like …

Voges, Otto
<person> German physician, *1867. ... See: Voges-Proskauer reaction. ... (05 Mar 2000) ...

Vogt cephalodactyly
Synonym for type II acrocephalosyndactyly ... vogt cephalodactyly ...

Vogt syndrome
Synonym for double athetosis ... A type of cerebral palsy manifested predominantly as bilateral involuntary movements, beginning at about the age of 3 years, and preceded by generalised hypotonia and delayed motor development. Due to various causes, including kernicterus and birth hypoxia. ... Synonym: congenital choreoathetosis, double congenital at …

Vogt-Koyanagi syndrome
<syndrome> Bilateral uveitis with iritis and glaucoma, premature graying of the hair, and alopecia, vitiligo, and dysacusia; related to Harada's syndrome and sympathetic ophthalmia. ... Synonym: oculocutaneous syndrome, uveocutaneous syndrome. ... Origin: Cecile and Oscar Vogt ... (05 Mar 2000) ...

Vogt-Spielmeyer disease
Synonym for Spielmeyer-Vogt disease ... Cerebral sphingolipidosis, late juvenile type. ... Synonym: Vogt-Spielmeyer disease. ... (05 Mar 2000) ...

Vogt, Alfred
<person> Swiss ophthalmologist, 1879-1943. ... See: Vogt-Koyanagi syndrome. ... (05 Mar 2000) ...

Vogt, Cecile
<person> German neurologist, 1875-1962. ... See: Vogt syndrome. ... (05 Mar 2000) ...

Vogt, Heinrich
<person> German neurologist, *1875. ... See: Spielmeyer-Vogt disease. ... (05 Mar 2000) ...

Vogt, Karl
<person> German physiologist, 1817-1895. ... See: Vogt's angle. ... (05 Mar 2000) ...

Vogt, Oskar
<person> German neurologist, 1870-1959. ... See: Vogt syndrome. ... (05 Mar 2000) ...

Vogt's angle
A craniometric angle formed by the nasobasilar and alveolonasal lines. ... Origin: K. Vogt ... (05 Mar 2000) ...

Vohwinkel
20th Century German dermatologist. ... See: Vohwinkel syndrome. ... (05 Mar 2000) ...

Vohwinkel syndrome
Synonym for mutilating keratoderma ... Diffuse keratoderma of the extremities, with the development during childhood of constricting fibrous bands around the middle phalanx of the fingers or toes which may lead to spontaneous amputation; autosomal dominant inheritance. ... Synonym: keratoma hereditarium mutilans, Vohwinkel syndrome. ... (05 Mar 2000)< …

voice
1. Sound uttered by the mouth, especially that uttered by human beings in speech or song; sound thus uttered considered as possessing some special quality or character; as, the human voice; a pleasant voice; a low voice. 'He with a manly voice saith his message.' (Chaucer) 'Her voice was ever soft, Gentle, and low; an excellent thing in woman.' (Sh …

voice disorders
Disorders of voice pitch, loudness, or quality. ... (12 Dec 1998) ...

voice quality
Voice quality is that component of speech which gives the primary distinction to a given speaker's voice when pitch and loudness are excluded. It involves both phonatory and resonatory characteristics. Some of the descriptions of voice quality are harshness, breathiness and nasality. ... (12 Dec 1998) ...

voice strain
The development of hoarse voice secondary to overuse. ... (27 Sep 1997) ...

void
1. Containing nothing; empty; vacant; not occupied; not filled. 'The earth was without form, and void.' (Gen. I. 2) 'I 'll get me to a place more void.' (Shak) 'I 'll chain him in my study, that, at void hours, I may run over the story of his country.' (Massinger) ... 2. Having no incumbent; unoccupied; said of offices and the like. 'Divers great of …