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

theophylline isopropanolamine
Has the same actions and uses as aminophylline, but a more rapid onset and a longer duration of action. ... (05 Mar 2000) ...

theophylline oxidase
<enzyme> Catalyses the oxidation of theophylline to 1,3-dimethyluric acid in the presence of ferricytochrome c ... Registry number: EC 1.5.99.- ... (26 Jun 1999) ...

theophylline sodium acetate
A mixture of theophylline sodium and sodium acetate, with 60% of theophylline; has the same uses as theophylline. ... (05 Mar 2000) ...

theophylline sodium glycinate
Equilibrium mixture containing theophylline sodium and glycine in approximately molecular proportions, buffered with an additional mole of glycine; similar in action and uses to aminophylline but more stable in air, and less irritating to the gastric mucosa. ... (05 Mar 2000) ...

theorem
1. That which is considered and established as a principle; hence, sometimes, a rule. 'Not theories, but theorems, the intelligible products of contemplation, intellectual objects in the mind, and of and for the mind exclusively.' (Coleridge) 'By the theorems, Which your polite and terser gallants practice, I re-refine the court, and civilize Their …

theoretical
Of, pertaining to or consisting in theory, not practical (distinguished from applied). ... (18 Nov 1997) ...

theory
In science, an explanation for some phenomenon which is based on observation, experimentation, and reasoning. In popular use, a theory is often assumed to imply mere speculation, but in science, something is not called a theory until it has been confirmed over the course of many independent experiments. Theories are more certain than hypotheses, bu …

theory of electrolytic dissociation
Synonym for Arrhenius doctrine ... The theory of electrolytic dissociation (1887) that became the basis of our modern understanding of electrolytes: in an electrically conductive solution (e.g., acid, base, or salt), free ions are present before electrolysis, and the proportion of molecules dissociated into ions can be calculated from measurements o …

theory of medicine
The science, as distinguished from the art, or practice, of medicine. ... (05 Mar 2000) ...

theosophy
Any system of philosophy or mysticism which proposes to attain intercourse with God and superior spirits, and consequent superhuman knowledge, by physical processes, as by the theurgic operations of some ancient Platonists, or by the chemical processes of the German fire philosophers; also, a direct, as distinguished from a revealed, knowledge of G …

theotherapy
Treatment of disease by prayer or religious exercises. ... Origin: G. Theos, god, + therapeia, therapy ... (05 Mar 2000) ...

theque
A nest or aggregation of nevocytes in the epidermis. ... Origin: Fr. A small box ... (05 Mar 2000) ...

therapeusis
Synonym: therapeutics. ... Synonym: therapy. ... (05 Mar 2000) ...

therapeutic
1. Pertaining to therapeutics or to the art of healing. ... 2. <pharmacology> Compounds that are used to treat specific diseases or medical conditions. ... 3. Curative. ... Origin: Gr. Therapeutikos = inclined to serve ... (13 Nov 1997) ...

therapeutic abortion
An abortion induced because of the mother's physical or mental health, or to prevent birth of a deformed child or a child resulting from rape. ... (05 Mar 2000) ...

therapeutic anaesthesia
Administration of an anaesthetic as a means of treatment. ... (05 Mar 2000) ...

therapeutic angiography
Use of angiographic catheters that have been modified to reduce or increase regional blood flow, or to deliver medicinal agents; interventional therapeutic angiography. ... See: angioplasty, balloon catheter, interventional angiography. ... (05 Mar 2000) ...

therapeutic community
Psychotherapeutic technique which emphasizes socioenvironmental and interpersonal influences in the resocialization and rehabilitation of the patient. The setting is usually a hospital unit or ward in which professional and nonprofessional staff interact with the patients. ... (12 Dec 1998) ...

therapeutic crisis
A turning point leading to positive or negative change in psychiatric treatment. ... (05 Mar 2000) ...

therapeutic dose
Synonym for curative dose ... The quantity of any substance required to effect the cure of a disease or that will correct the manifestations of a deficiency of a particular factor in the diet, effective dose used with therapeutically applied compounds. ... Synonym: therapeutic dose. ... (05 Mar 2000) ...

therapeutic electrode
Synonym for active electrode ... A small electrode whose exciting effect is used to stimulate or record potentials from a localised area. ... Synonym: exciting electrode, localizing electrode, therapeutic electrode. ... (05 Mar 2000) ...

therapeutic equivalency
The relative equivalency in the efficacy of different modes of treatment of a disease, most often used to compare the efficacy of different pharmaceuticals to treat a given disease. ... (12 Dec 1998) ...

therapeutic fever
Synonym for pyrotherapy ... Treatment of disease by inducing an artificial fever in the patient. ... Synonym: therapeutic fever. ... (05 Mar 2000) ...

therapeutic group
Any group of patients meeting together for mutual psychotherapeutic, personal development, and life change goals. ... (05 Mar 2000) ...

therapeutic incompatibility
Synonym for physiologic incompatibility ... A form of incompatibility in which the substances in a mixture exert opposing physiologic actions. ... Synonym: therapeutic incompatibility. ... (05 Mar 2000) ...

therapeutic index
The ratio of LD50 to ED50, used in quantitative comparison of drugs. ... (05 Mar 2000) ...

therapeutic iridectomy
<procedure> An iridectomy performed for the prevention or cure of disease, e.g., angle-closure glaucoma. ... (05 Mar 2000) ...

therapeutic malaria
Intentionally induced malaria, formerly used against neurosyphilis and certain other paralytic diseases; the mechanism is thought to be immunological, with Plasmodium antibodies cross-reacting against the spirochetes or other agents. ... (05 Mar 2000) ...

therapeutic pessimism
A disbelief in the curative virtues of remedies in general and especially of drugs. ... (05 Mar 2000) ...

therapeutic pneumothorax
Pneumothorax designed to create some pulmonary parenchymal collapse, diaphragmatic immobilization, or both. ... (05 Mar 2000) ...

therapeutic ratio
The ratio of the maximally tolerated dose of a drug to the minimal curative or effective dose; LD50 divided by ED50. ... (05 Mar 2000) ...

therapeutic touch
The placing of the hands of the healer upon the person to be cured. ... (12 Dec 1998) ...

therapeutic vaccine
An injected therapy consisting of synthetic HIV antigen (for example, gp160) that is administered to people who already have HIV It is supposed to heighten and broaden the immune response to HIV, helping to halt disease progression. ... (09 Oct 1997) ...

therapeutical
<medicine> Of or pertaining to the healing art; concerned in discovering and applying remedies for diseases; curative. 'Therapeutic or curative physic.' 'Medicine is justly distributed into 'prophylactic,' or the art of preserving health, and therapeutic, or the art of restoring it.' (I. Watts) ... Origin: F. Therapeutique, Gr, from attendant, …

therapeutist
One skilled in therapeutics. ... (05 Mar 2000) ...

therapia
Synonym: therapy. ... Synonym: therapeutics. ... Origin: L. Fr. G. Therapeia, therapy ... (05 Mar 2000) ...

therapia magna sterilisans
Ehrlich's concept that an infectious disease, especially one of protozoal origin, can be cured by one large dose of a suitable remedy, large enough to sterilise all the tissues and to destroy the microorganism contained therein. ... (05 Mar 2000) ...

therapist
One professionally trained and/or skilled in the practice of a particular type of therapy. ... (05 Mar 2000) ...

therapy
The treatment of disease, therapeutics. ... Origin: Gr. Therapeia = service done to the sick ... (18 Nov 1997) ...

therapy, computer-assisted
Computer systems utilised as adjuncts in the treatment of disease. ... (12 Dec 1998) ...

therapy, gene
Insertion of normal DNA directly into cells to correct a genetic defect. Gene therapy is the treatment of disease by replacing, altering, or supplementing a gene responsible for the disease. In gene therapy for cancer, for example, researchers are trying to bolster the body's natural capacity to combat cancer and make the tumour more sensitive to o …

there
1. In or at that place. '[They] there left me and my man, both bound together.' 'The Lord God planted a garden eastward in Eden; and there he put the man whom he had formed.' (Ge. Ii. 8) ... In distinction from here, there usually signifies a place farther off. 'Darkness there might well seem twilight here.' . ... 2. In that matter, relation, etc.; a …

thereafter
1. After that; afterward. ... 2. According to that; accordingly. 'I deny not but that it is of greatest concernment in the church and commonwealth to have a vigilant eye how books demean themselves as well as men; and thereafter to confine, imprison, and do sharpest justice on them as malefactors.' (Milton) ... 3. Of that sort. 'My audience is not th …

therencephalous
Denoting a skull in which the angle at the hormion, formed by lines converging from the inion and nasion, measures from 116°to 129°. ... Origin: G. Ther, wild beast, + enkephalos, brain ... (05 Mar 2000) ...

theriaca
1. <medicine> An ancient composition esteemed efficacious against the effects of poison; especially, a certain compound of sixty-four drugs, prepared, pulverized, and reduced by means of honey to an electuary. ... Synonym: theriaca Andromachi, and Venice treacle. ... 2. Treacle; molasses. ... Origin: L. Theriaca an antidote against the bite of s …

theriatrics
The medical treatment of animals in a zoo or menagerie. ... Origin: G. Therion, beast, + iatrike, medical treatment ... (05 Mar 2000) ...

therio-
Animals. ... Origin: G. Ther, therion, beast ... (05 Mar 2000) ...

theriodontia
<paleontology> An extinct order of reptiles found in the Permian and Triassic formations in South Africa. In some respects they resembled carnivorous mammals. ... Synonym: Theromorpha. ... They had biconcave vertebrae, ambulatory limbs, and a well-developed pelvis and shoulder girdle. Some of the species had large maxillary teeth. The head some …

theriogenologic
Theriogenological ... Pertaining to theriogenology. ... (05 Mar 2000) ...

theriogenology
The study of reproduction in animals, especially domestic animals; includes the study of obstetrics and genital diseases in male and female animals, as well as the physiology of animal reproduction. ... Origin: therio-+ G. Genos birth, + logos, study ... (05 Mar 2000) ...

theriomorphism
Ascription of animal characteristics to human beings. ... Compare: anthropomorphism. ... Origin: therio-+ morphe, form ... (05 Mar 2000) ...

therm
A unit of energy equal to 100,000 Btus; used primarily for natural gas. ... (05 Dec 1998) ...

thermacogenesis
The elevation of body temperature by drug action. ... Origin: G. Therme, heat, + pharmakon, drug, + genesis, production ... (05 Mar 2000) ...

thermal
Pertaining to or characterised by heat. ... (18 Nov 1997) ...

thermal anaesthesia
Loss of temperature appreciation. ... (05 Mar 2000) ...

thermal barrier
<radiobiology> In magnetic mirror devices, this is a depression of electrostatic potential formed by enhancing ion loss in the region between the central cell and the positive potential plug. The thermal barrier significantly reduces the density requirements in the plug and lowers the overall power required to sustain the solenoidal plugging …

thermal burn
A burn caused by heat. ... (05 Mar 2000) ...

thermal capacity
Synonym for heat capacity ... <chemistry> The amount of energy required to raise the temperature of an object by one degree Celsius (or Kelvin), it is represented by the symbol C and is given in units of J/K. ... (09 Jan 1998) ...

thermal conductivity
<radiobiology> Degree to which a substance transmits heat. (basic definition, I believe, is: (heat flow) = (thermal conductivity) (temperature gradient)) ... (09 Oct 1997) ...

thermal conversion cycle
<radiobiology> Process of generating electrical power with a fusion reactor by means of a steam / other gas turbine. This is distinct from direct conversion cycles. ... (09 Oct 1997) ...

thermal cover
Vegetative condition, generally with greater than 70% canopy closure and 40 feet in height, that can significantly ameliorate weather effects such as wind, heat, cold, and snow. Used by wildlife in winter. ... (05 Dec 1998) ...

thermal efficiency
<radiobiology> Ratio of the electric power produced by a power plant to the original amount of heat produced. This measures the efficiency with which the thermal energy is converted to electricity. ... (09 Oct 1997) ...

thermal expansion
<radiobiology> Characteristic property of most solids and liquids which causes their volume to increase when they are heated. Thermal expansion and contraction can cause structural problems in pulsed fusion devices. ... (09 Oct 1997) ...

thermal melting profile
In general a record of the phase state of a system over a temperature range. Phase changes can be detected by exothermy or endothermy. Valuable in studying lipid and DNA structures. ... (18 Nov 1997) ...

thermal neutron
<radiobiology> A neutron in thermal equilibrium with its surrounding environment. Thermal neutrons are those that have been slowed down by a moderator to speeds characteristic of the local temperature. ... Compare: fast neutron. ... (09 Oct 1997) ...

thermal resource
A facility that produces electricity by using a heat engine to power an electric generator. The heat may be supplied by the combustion of coal, oil, natural gas, biomass, or other fuels, including nuclear fission, solar, or geothermal resources. ... (05 Dec 1998) ...

thermal sense
Synonym for thermoesthesia ... The ability to distinguish differences of temperature. ... Synonym: temperature sense, thermal sense, thermic sense, thermesthesia. ... Origin: thermo-+ G. Aisthesis, sensation ... (05 Mar 2000) ...

thermal sensors
Sensors that detect tiny changes in heat or temperature. ... (14 Nov 1997) ...

thermal spectrum
Synonym for infrared spectrum ... The part of the invisible spectrum of wave length just longer than that of visible red light. ... Synonym: thermal spectrum. ... (05 Mar 2000) ...

thermal velocity
<radiobiology> Average speed (magnitude of velocity) of a particle at a given temperature (in a Maxwellian velocity distribution). ... (09 Oct 1997) ...

thermalgesia
High sensibility to heat; pain caused by a slight degree of heat. ... Synonym: thermoalgesia. ... Origin: therm-+ G. Algesis, sense of pain ... (05 Mar 2000) ...

thermalgia
Burning pain. ... See: causalgia. ... Origin: therm-+ G. Algos, pain ... (05 Mar 2000) ...

thermalisation
<radiobiology> Also known as slowing-down, this is the process (generally arising from collisions) by which fast (superthermal) particles give up energy to the plasma and slow down to thermal speeds. ... (09 Oct 1997) ...

thermanalgesia
Synonym: thermoanesthesia. ... Origin: therm-+ analgesia ... (05 Mar 2000) ...

thermanesthesia
Synonym for thermoanesthesia ... Loss of the temperature sense or of the ability to distinguish between heat and cold; insensibility to heat or to temperature changes. ... Synonym: ardanesthesia, thermanalgesia, thermanesthesia, thermoanalgesia. ... Origin: thermo-+ G. An-priv. + aisthesis, sensation ... (05 Mar 2000) ...

thermatology
The branch of therapeutics concerned with the application of heat. ... See: thermotherapy. ... Origin: therm-+ G. Logos, study ... (05 Mar 2000) ...

thermelometer
An electric thermometer, especially used for recording slight variations of temperature. ... Origin: therm-+ electric + G. Metron, measure ... (05 Mar 2000) ...

thermesthesia
Synonym for thermoesthesia ... The ability to distinguish differences of temperature. ... Synonym: temperature sense, thermal sense, thermic sense, thermesthesia. ... Origin: thermo-+ G. Aisthesis, sensation ... (05 Mar 2000) ...

thermesthesiometer
Synonym for thermoesthesiometer ... An instrument for testing the temperature sense, consisting of a metal disk with thermometer attached, by which the exact temperature of the disk at the time of application may be known. ... Synonym: thermesthesiometer. ... Origin: thermo-+ G. Aisthesis, sensation, + metron, measure ... (05 Mar 2000) ...

thermic fever
Synonym for heatstroke ... A severe and often fatal illness produced by exposure to excessively high temperatures, especially when accompanied by marked exertion. ... It can manifest by elevated body temperature, lack of sweating, hot dry skin, and neurologic symptoms; unconsciousness, paralysis, headache, vertigo, confusion. In severe cases very hig …

thermistor
A device for determining temperature; also may be used to monitor control of temperature. ... Origin: G. Therme, heat ... (05 Mar 2000) ...

thermitase
<enzyme> From thermoactinomyces vulgaris; very broad specificity; inhibited by peptide diazomethyl ketones ... Registry number: EC 3.4.21.- ... Synonym: microbial serine protease thermitase ... (26 Jun 1999) ...

thermo-
<prefix> A combining form meaning warm or heat; as in thermochemistry, thermodynamic. ... Origin: Gr. Qermh = heat, qermos = hot ... (29 Oct 1998) ...

thermoacidophiles
Archaebacteria that grow in hot sulfur springs at low pH. ... (05 Mar 2000) ...

thermoalgesia
Synonym for thermalgesia ... High sensibility to heat; pain caused by a slight degree of heat. ... Synonym: thermoalgesia. ... Origin: therm-+ G. Algesis, sense of pain ... (05 Mar 2000) ...

thermoanalgesia
Synonym for thermoanesthesia ... Loss of the temperature sense or of the ability to distinguish between heat and cold; insensibility to heat or to temperature changes. ... Synonym: ardanesthesia, thermanalgesia, thermanesthesia, thermoanalgesia. ... Origin: thermo-+ G. An-priv. + aisthesis, sensation ... (05 Mar 2000) ...

thermoanesthesia
Loss of the temperature sense or of the ability to distinguish between heat and cold; insensibility to heat or to temperature changes. ... Synonym: ardanesthesia, thermanalgesia, thermanesthesia, thermoanalgesia. ... Origin: thermo-+ G. An-priv. + aisthesis, sensation ... (05 Mar 2000) ...

thermocauterectomy
<procedure> Removal of tissue by thermocautery. ... Origin: thermocautery + G. Ektome, excision ... (05 Mar 2000) ...

thermochemical conversion process
Chemical reactions employing heat to produce fuels. ... (05 Dec 1998) ...

thermochroic
1. Relating to thermochrose. ... 2. Exerting a selective action on heat rays. ... (05 Mar 2000) ...

thermochroism
Synonym for thermochrosis ... The selective action of certain substances on radiant heat, absorbing some of the rays, reflecting or transmitting others. ... Synonym: thermochroism. ... Origin: thermo-+ G. Chrosis, colouring ... (05 Mar 2000) ...

thermochrose
The property possessed by heat rays of reflection, refraction, and absorption, similar to that of light rays. ... Synonym: thermochrosy. ... Origin: thermo-+ G. Chrosis, colouring ... (05 Mar 2000) ...

thermochrosis
The selective action of certain substances on radiant heat, absorbing some of the rays, reflecting or transmitting others. ... Synonym: thermochroism. ... Origin: thermo-+ G. Chrosis, colouring ... (05 Mar 2000) ...

thermocline
Layer of water between the warmer surface zone and the colder deep zone of a thermally stratified body of water. In the thermocline, temperature and oxygen concentration drop precipitously with depth. ... (09 Oct 1997) ...

thermocoagulation
The process of converting tissue into a gel by heat. ... (05 Mar 2000) ...

thermococcaceae
A family of anaerobic thermococcales found in hot environments. There are two genera: pyrococcus and thermococcus. ... (12 Dec 1998) ...

thermococcales
An order of strictly anaerobic, thermophilic archaea, in the kingdom euryarchaeota. Members exhibit heterotropic growth by sulfur respiration. There is a single family thermococcaceae. ... (12 Dec 1998) ...

thermococcus
A genus of extremely thermophilic heterotrophic archaea, in the family thermococcaceae, occurring in heated sea flows. They are anerobic chemoorganotropic sulfidogens. ... (12 Dec 1998) ...

thermocouple
A device for measuring slight changes in temperature, consisting of two wires of different metals, one wire being kept at a certain low temperature, the other in the tissue or other material whose temperature is to be measured; a thermoelectric current is set up which is measured by a potentiometer. ... Synonym: thermojunction. ... (05 Mar 2000) ...

thermodiffusion
Diffusion of fluids, either gaseous or liquid, as influenced by the temperature of the fluid. ... (05 Mar 2000) ...