Copy of `mondofacto - Online Medical Dictionary`

The wordlist doesn't exist anymore, or, the website doesn't exist anymore. On this page you can find a copy of the original information. The information may have been taken offline because it is outdated.

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

void metal composite
A porous metal structure that enables tissue growth within the openings to establish long-term attachment between prosthesis and tissue. ... (05 Mar 2000) ...

voiding cystogram
Synonym for cystourethrogram ... <investigation, radiology> A special X-ray study which allow visualisation of the bladder and urethra on X-ray. A catheter is placed into the urethra, through which a radio-opaque contrast material is injected. Subsequent X-rays will show the anatomy of the bladder and urethra. ... (27 Sep 1997) ...

voiding flow rate
Urinary flow as a function of time during micturition, as graphically recorded by a flow meter. ... (05 Mar 2000) ...

Voigt, Christian
<person> Austrian anatomist, 1809-1890. ... See: Voigt's lines. ... (05 Mar 2000) ...

Voigt's lines
Synonym for Futcher's line ... A dorso-ventral line of pigmentation occurring symmetrically and bilaterally for about 10 cm along the lateral edge of the biceps muscle, seen in some blacks. ... Synonym: Voigt's lines. ... (05 Mar 2000) ...

vola
Palm of the hand or sole of the foot. ... Origin: L. ... (05 Mar 2000) ...

volar carpal ligament
Synonym for transverse carpal ligament ... <anatomy> A strong fibrous band crossing the front of the carpus and binding down the flexor tendons of the digits and the flexor carpi radialis tendon and the median nerve; in so doing it creates the carpal tunnel. ... Synonym: retinaculum flexorum, deep part of flexor retinaculum, flexor retinaculum, …

volar interosseous artery
Synonym for anterior interosseous artery ... <anatomy, artery> Origin, common interosseous; distribution, deep parts of the forearm anteriorly; anastomoses, posterior interosseous. ... Synonym: arteria interossea anterior, arteria interossea volaris, volar interosseous artery. ... (05 Mar 2000) ...

volar interosseous nerve
Synonym for anterior interosseous nerve ... <anatomy, nerve> A branch of the median arising in elbow region, running on interosseous membrane, supplying the flexor pollicis longus, part of flexor digitorum profundus and the pronator quadratus muscles, as well as radiocarpal and intercarpal joints. ... Synonym: nervus interosseus anterior, ramus …

volatile
1. Passing through the air on wings, or by the buoyant force of the atmosphere; flying; having the power to fly. ... 2. Capable of wasting away, or of easily passing into the aeriform state; subject to evaporation. ... Substances which affect the smell with pungent or fragrant odors, as musk, hartshorn, and essential oils, are called volatile substan …

volatile anaesthetic
A liquid anaesthetic that at room temperature volatilises to a vapor which when inhaled is capable of producing general anaesthesia. ... See: anaesthetic vapor. ... (05 Mar 2000) ...

volatile fatty acid number
Synonym for Reichert-Meissl number ... An index of the volatile acid content of a fat; the number of milliliters of 0.1 n KOH required to neutralise the soluble volatile fatty acids in 5 g of fat that has been saponified, acidified to liberate the fatty acids, and then steam-distilled. ... Synonym: volatile fatty acid number. ... (05 Mar 2000) ...

volatile mustard oil
Synonym for allyl isothiocyanate ... CH2==CH-CH2-NCS; volatile mustard CH-allylisosulfocyanate; isothiocyanic allyl ester;obtained from Brassica nigra or produced synthetically; a vesicant, used in 10% solution in 50% alcohol as a counterirritant in neuralgia. Gives mustard its characteristics flavor and aroma. ... See: mustard oil. ... Synonym: volat …

volatile oil
A substance of oily consistency and feel, derived from a plant and containing the principles to which the odour and taste of the plant are due (essential oil); in contrast to a fatty oil, a volatile oil evaporates when exposed to the air and thus is capable of distillation; it may also be obtained by expression or extraction; many volatile oil's, i …

volatile organic compounds
(VOC) Emissions of non-methane hydrocarbons, measured by standard DEQ methods. ... (05 Dec 1998) ...

volatiles
Substances that are readily vapourised. ... (05 Dec 1998) ...

volatilise
Synonym for evaporate ... To cause or undergo evaporation. ... Synonym: volatilise. ... (05 Mar 2000) ...

volatilization
Synonym: evaporation. ... Origin: fr. L. Volatilis, volatile, fr. Volo, pp. Volatus, to fly ... (05 Mar 2000) ...

volcanic
1. Of or pertaining to a volcano or volcanoes; as, volcanic heat. ... 2. Produced by a volcano, or, more generally, by igneous agencies; as, volcanic tufa. ... 3. Changed or affected by the heat of a volcano. Volcanic bomb, a mass ejected from a volcano, often of molten lava having a rounded form. Volcanic cone, a hill, conical in form, built up of c …

volcanic eruption
The ash, dust, gases, and lava released by volcanic explosion. The gases are volatile matter composed principally of about 90% water vapor, and carbon dioxide, sulfur dioxide, hydrogen, carbon monoxide, and nitrogen. The ash or dust is pyroclastic ejecta and lava is molten extrusive material consisting mainly of magnesium silicate. ... (12 Dec 1998) …

volcano
Origin: It. Volcano, vulcano, fr. L. Vulcanus Vulkan, the god of fire. See Vulkan. ... <geology> A mountain or hill, usually more or less conical in form, from which lava, cinders, steam, sulphur gases, and the like, are ejected; often popularly called a burning mountain. ... Volcanoes include many of the most conspicuous and lofty mountains of …

vole
<zoology> Any one of numerous species of micelike rodents belonging to Arvicola and allied genera of the subfamily Arvicolinae. They have a thick head, short ears, and a short hairy tail. ... The water vole, or water rat, of Europe (Arvicola amphibius) is a common large aquatic species. The short-tailed field vole (A. Agrestis) of Northern and …

vole bacillus
An acid-fast bacillus isolated from voles and used in the production of a vaccine against human and bovine tuberculosis. ... (05 Mar 2000) ...

Volhard, Franz
<person> German physician, 1872-1950. ... See: Volhard's test. ... (05 Mar 2000) ...

Volhard's test
A test for renal function: the patient drinks 1500 ml of water on an empty stomach; if the patient was not dehydrated beforehand and the kidneys are normal, this fluid will be excreted by the end of 4 hr, with specific gravity of the urine being from 1.001 to 1.004. ... (05 Mar 2000) ...

volition
Voluntary activity without external compulsion. ... (12 Dec 1998) ...

volitional
Done by an act of will; relating to volition. ... (05 Mar 2000) ...

volitional tremor
A tremor that can be arrested by a strong effort of the will. ... Synonym: intention tremor. ... (05 Mar 2000) ...

Volkmann, Alfred
<person> German physiologist, 1800-1877. ... See: Volkmann's canals. ... (05 Mar 2000) ...

Volkmann, Alfred Wilhelm
<person> Was Professor of Physiology and Anatomy in Dorpat and later in Halle. ... Volkmann's Canals - canals in bone carrying blood vessels from the periosteum. ... Lived: 1800-1877. B. Leipzig, Jul 1st, 1800, d. Halle, Apr 21st, 1877. ... (05 Dec 1998) ...

Volkmann, Richard
<person> German surgeon, 1830-1889. ... See: Volkmann's cheilitis, Volkmann's contracture, Volkmann's spoon. ... (05 Mar 2000) ...

Volkmann's canals
Vascular canal's in compact bone that, unlike those of the haversian system, are not surrounded by concentric lamellae of bone; they run for the most part transversely, perforating the lamellae of the haversian system, and communicate with the canal's of that system. ... (05 Mar 2000) ...

Volkmann's cheilitis
Synonym for cheilitis glandularis ... An acquired disorder, of unknown aetiology, of the lower lip characterised by swelling, ulceration, crusting, mucous gland hyperplasia, abscesses, and sinus tracts. ... Synonym: Baelz' disease, myxadenitis labialis, Volkmann's cheilitis. ... (05 Mar 2000) ...

Volkmann's contracture
Ischemic contracture resulting from irreversible necrosis of muscle tissue, produced by a compartment syndrome; classically involves the forearm flexor muscles. ... (05 Mar 2000) ...

Volkmann's spoon
A sharp spoon for scraping away carious bone or other diseased tissue. ... (05 Mar 2000) ...

volley
Origin: F. Volee; flight, a volley, or discharge of several guns, fr. Voler to fly, L. Volare. See Volatile. ... 1. A flight of missiles, as arrows, bullets, or the like; the simultaneous discharge of a number of small arms. 'Fiery darts in flaming volleys flew.' (Milton) 'Each volley tells that thousands cease to breathe.' (Byron) ... 2. A burst or …

Vollmer test
A tuberculin patch test. ... (05 Mar 2000) ...

Vollmer, Herman
<person> U.S. Paediatrician, 1896-1959. ... See: Vollmer test. ... (05 Mar 2000) ...

Volpe-Manhold Index
An index for comparing the amount of dental calculus in individuals. ... (05 Mar 2000) ...

Volpe, Anthony
<person> U.S. Dentist, *1932. ... See: Volpe-Manhold Index. ... (05 Mar 2000) ...

volsella
Synonym: vulsella forceps. ... Origin: see vulsella ... (05 Mar 2000) ...

volt
<unit> Unit of electrical potential. ... (11 Jan 1998) ...

voltage clamp
<physiology, technique> A technique in electrophysiology, in which a microelectrode is inserted into a cell and current injected through the electrode so as to hold the cells membrane potential at some predefined level. ... The technique can be used with separate electrodes for voltage sensing and current passing, for small cells, the same ele …

voltage gated ion channel
<physiology> A transmembrane ion channel whose permeability to ions is extremely sensitive to the transmembrane potential difference. These channels are essential for neuronal signal transmission and for intracellular signal transduction. ... See: sodium channel. ... (18 Nov 1997) ...

voltage gradient
<physiology> Literally, the electric field in a region, defined as the potential difference between two points divided by the distance between them. Used more loosely, the potential difference across a plasma membrane. ... (18 Nov 1997) ...

voltage loop
<radiobiology> A wire which encircles the main axis of a tokamak in the vicinity of the vacuum vessel. The voltage induced in this loop during the shot is a measure of the ohmic heating voltage induced by transformer action and applied to the plasma. ... (09 Oct 1997) ...

voltage-gated channel
A class of ion channel's that open and close in response to change in the electrical potential across the plasma membrane of the cell; voltage-gated Na+ c.'s are important for conducting action potential along nerve cell processes. ... (05 Mar 2000) ...

voltaic
1. Of or pertaining to Alessandro Volta, who first devised apparatus for developing electric currents by chemical action, and established this branch of electric science; discovered by Volta; as, voltaic electricity. ... 2. Of or pertaining to voltaism, or voltaic electricity; as, voltaic induction; the voltaic arc. ... See the Note under Galvanism. …

voltaic cell
<chemistry> A device in which chemical energy from a spontaneous redox reaction is changed to electrical energy that can be used to do work, also called a galvanic cell. ... (09 Jan 1998) ...

voltaic taste
Synonym for franklinic taste ... A metallic or sour taste produced by the application of static electricity to the tongue. ... Synonym: voltaic taste. ... (05 Mar 2000) ...

voltaism
<physics> That form of electricity which is developed by the chemical action between metals and different liquids; voltaic electricity; also, the science which treats of this form of electricity; called also galvanism, from Galvani, on account of his experiments showing the remarkable influence of this agent on animals. ... Origin: Cf. F. Volt …

voltampere
A unit of electrical power; the product of 1 volt by 1 ampere; equivalent to 1 watt or 1/1000 kilowatt. ... (05 Mar 2000) ...

voltmeter
<chemistry> An instrument that measures cell potential by drawing electric current through a known resistance. ... (09 Jan 1998) ...

Voltolini, Friedrich
<person> German laryngologist, 1819-1889. ... See: Voltolini's disease. ... (05 Mar 2000) ...

Voltolini's disease
Disease of the labyrinth, leading to deafmutism, in young children. ... (05 Mar 2000) ...

voluble
1. Easily rolling or turning; easily set in motion; apt to roll; rotating; as, voluble particles of matter. ... 2. Moving with ease and smoothness in uttering words; of rapid speech; nimble in speaking; glib; as, a flippant, voluble, tongue. '[Cassio] a knave very voluble.' (Shak) ... Voluble was used formerly to indicate readiness of speech merely, …

volume
1. A roll; a scroll; a written document rolled up for keeping or for use, after the manner of the ancients. 'The papyrus, and afterward the parchment, was joined together [by the ancients] to form one sheet, and then rolled upon a staff into a volume (volumen).' (Encyc. Brit) ... 2. Hence, a collection of printed sheets bound together, whether conta …

volume averaging
In computed tomography or magnetic resonance imaging, the effect of expressing the average density of a voxel as a pixel in the image; the greater the slice thickness, the more averaging is necessary, with loss in density resolution. ... (05 Mar 2000) ...

volume element
See: voxel. ... (05 Mar 2000) ...

volume index
An indication of the relative size (e.g., volume) of erythrocytes, calculated as follows: haematocrit value, expressed as per cent of normal &divide; red blood cell count, expressed as per cent of normal = volume index. ... (05 Mar 2000) ...

volume loading rate
The rate of raw materials put into a fermenter or aerobic digester, expressed in terms of material weight per unit volume per unit time. ... (09 Oct 1997) ...

volume substitute
Infusion of cell-free or volume-expanding fluids such as dextran for replacement of fluid lost from the circulation as part of the prevention or treatment of circulatory shock. ... (05 Mar 2000) ...

volume unit
A unit of a logarithmic scale for expressing the power level of a complex audio-frequency electrical signal, such as that transmitting music or speech; the power in volume unit's equals the decibels of power above a reference level of one milliwatt, as measured with an appropriate meter. ... (05 Mar 2000) ...

volume-controlled respirator
A respirator that provides a predetermined volume of gases during inhalation, with the pressure required to move that volume remaining variable, depending upon resistance. ... (05 Mar 2000) ...

volumetric
Of or pertaining to the measurement of volume. ... <chemistry> Volumetric analysis, that system of the quantitative analysis of solutions which employs definite volumes of standardized solutions of reagents, as measured by burettes, pipettes, etc.; also, the analysis of gases by volume, as by the eudiometer. ... Origin: Volume + -metric. ... Sou …

volumetric analysis
Quantitative analysis by the addition of graduated amounts of a standard test solution to a solution of a known amount of the substance analyzed, until the reaction is just at an end; depends upon the stoichiometric nature of the reaction between the test solution and the unknown. ... (05 Mar 2000) ...

volumetric flask
A flask calibrated to contain or to deliver a definite amount of liquid. ... (05 Mar 2000) ...

volumetric solution
A solution made by mixing measured volumes of the components. ... (05 Mar 2000) ...

voluntary
Accomplished in accordance with the will. ... Origin: L. Voluntas = will ... (18 Nov 1997) ...

voluntary dehydration
That physiologic lag or deficit that results when sensations of thirst are not strong enough to bring about complete replacement of water loss, as in rapid sweating. ... (05 Mar 2000) ...

voluntary guarding
Abdominal muscle spasm that can be willfully suppressed. ... (05 Mar 2000) ...

voluntary health agencies
Non-profit organizations concerned with various aspects of health, e.g., education, promotion, treatment, services, etc. ... (12 Dec 1998) ...

voluntary hospital
A hospital supported in part by voluntary contributions and under the control of a local, usually self-appointed, board of managers; a non-profit hospital. ... Synonym: philanthropic hospital. ... (05 Mar 2000) ...

voluntary muscle
<anatomy> One whose action is under the control of the will; all the striated muscle's, except the heart, are voluntary muscle's. ... (05 Mar 2000) ...

voluntary mutism
Synonym for elective mutism ... Mutism due to psychogenic causes. ... Synonym: voluntary mutism. ... (05 Mar 2000) ...

voluntary nystagmus
Pendular nystagmus in which the individual causes an extremely fine and rapid horizontal oscillation of the eyes. The nystagamus consists of back-to-back saccades and is seldom done for more than a few seconds at a time. ... (05 Mar 2000) ...

voluntary workers
Persons who donate their services. ... (12 Dec 1998) ...

voluptuous
Causing or caused by sensual pleasure; given to gratification of the senses. ... Origin: L. Voluptuosus, fr. Voluptas, pleasure ... (05 Mar 2000) ...

volute
1. A spiral scroll which forms the chief feature of the Ionic capital, and which, on a much smaller scale, is a feature in the Corinthian and Composite capitals. ... 2. <zoology> A spiral turn, as in certain shells. ... 3. <zoology> Any voluta. Volute spiring, a spring formed of a spiral scroll of plate, rod, or wire, extended or extensib …

volutin
A nucleoprotein complex found as cytoplasmic granules in certain bacteria, yeasts, and protozoa (such as trypanosome flagellates) which serves as food reserves. ... Synonym: volutin granules. ... (05 Mar 2000) ...

volutin granule
Metachromatic granules containing polyphosphate, a linear phosphate polymer found in bacteria, fungi, algae and some higher eukaryotes that may serve as a stock of phosphate. ... (18 Nov 1997) ...

volutin granules
Synonym for volutin ... A nucleoprotein complex found as cytoplasmic granules in certain bacteria, yeasts, and protozoa (such as trypanosome flagellates) which serves as food reserves. ... Synonym: volutin granules. ... (05 Mar 2000) ...

volvocida
An order of plantlike, flagellate protozoa commonly found in freshwater habitats. Characteristics include the presence of a cellulose wall and two-to-four equal, smooth, apical flagella. ... (12 Dec 1998) ...

Volvox
A genus of colonial flagellates. The colony is a hollow sphere about 0.5mm in diameter comprising about 50,000 cells embedded in a gelatinous wall and the cells are sometimes connected by cytoplasmic bridges. Each cell has a chloroplast and two flagella. ... (18 Nov 1997) ...

volvulosis
Synonym for onchocerciasis ... Infection with nematodes of the genus onchocerca. Characteristics include the presence of firm subcutaneous nodules filled with adult worms, pruritus, and ocular lesions. ... (12 Dec 1998) ...

vomer cartilagineus
Synonym for cartilago vomeronasalis ... A narrow strip of cartilage located between the lower edge of the cartilage of the nasal septum and the vomer. ... Synonym: Jacobson's cartilage, paraseptal cartilage, vomer cartilagineus, vomerine cartilage, vomeronasal cartilage. ... (05 Mar 2000) ...

vomeral groove
The groove on the anterior border of the vomer that receives the septal cartilage. ... Synonym: sulcus vomeralis, sulcus vomeris, vomeral sulcus. ... (05 Mar 2000) ...

vomeral sulcus
Synonym for vomeral groove ... The groove on the anterior border of the vomer that receives the septal cartilage. ... Synonym: sulcus vomeralis, sulcus vomeris, vomeral sulcus. ... (05 Mar 2000) ...

vomerine
Relating to the vomer. ... (05 Mar 2000) ...

vomerine canal
Synonym for vomerovaginal canal ... An opening between the vaginal process of the sphenoid and the ala of the vomer on either side. It conveys a branch of the sphenopalatine artery. ... Synonym: canalis vomerovaginalis, basipharyngeal canal, vomerine canal. ... (05 Mar 2000) ...

vomerine cartilage
Synonym for cartilago vomeronasalis ... A narrow strip of cartilage located between the lower edge of the cartilage of the nasal septum and the vomer. ... Synonym: Jacobson's cartilage, paraseptal cartilage, vomer cartilagineus, vomerine cartilage, vomeronasal cartilage. ... (05 Mar 2000) ...

vomerobasilar
Relating to the vomer and the base of the skull. ... (05 Mar 2000) ...

vomerobasilar canal
Synonym for vomerorostral canal ... A small canal between the superior border of the vomer and the rostrum of the sphenoidal bone. ... Synonym: canalis vomerorostralis, vomerobasilar canal. ... (05 Mar 2000) ...

vomeronasal
Relating to the vomer and the nasal bone. ... (05 Mar 2000) ...

vomeronasal organ
A specialised part of the olfactory system located anteriorly in the nasal cavity within the nasal septum. Chemosensitive cells of the vomeronasal organ project via the vomeronasal nerve to the accessory olfactory bulb. The primary function of this organ appears to be in sensing pheromones which regulate reproductive and other social behaviours. Wh …

vomerorostral canal
A small canal between the superior border of the vomer and the rostrum of the sphenoidal bone. ... Synonym: canalis vomerorostralis, vomerobasilar canal. ... (05 Mar 2000) ...

vomerovaginal canal
An opening between the vaginal process of the sphenoid and the ala of the vomer on either side. It conveys a branch of the sphenopalatine artery. ... Synonym: canalis vomerovaginalis, basipharyngeal canal, vomerine canal. ... (05 Mar 2000) ...

vomerovaginal groove
A sulcus on the inferior aspect of the vaginal process of the sphenoid bone that, together with ala of the vomer, forms the vomerovaginal canal. ... Synonym: sulcus vomerovaginalis. ... (05 Mar 2000) ...

vomicose
Profusely suppurating, as by many ulcers. ... Origin: L. Vomica, an ulcer ... (05 Mar 2000) ...

vomicus
Synonym: vomica. ... Origin: L. ... (05 Mar 2000) ...