| radioactive tracer | <physics, radiobiology> A radioisotope is an element which has the same atomic number as another but a different atomic weight, exhibiting the property of spontaneous decomposition. Decomposition gives off radiation (gamma rays) that can be detected with a counter. If a radioisotope is attached to a biological compound and injected into the body, its path may be traced through the body (resulting in an image). (27 Sep 1997) |
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| radioactive tracers | Radioactive substances added in minute amounts to the reacting elements or compounds in a chemical process and traced through the process by appropriate detection methods, e.g., geiger counter. Compounds containing tracers are often said to be tagged or labelled. (12 Dec 1998) |
| radioactive waste | <radiobiology> Equipment and materials from nuclear operations which are radioactive and for which there is no further anticipated use. Wastes are generally classified as high-level (having radioactivity concentrations of hundreds to thousands of curies per gallon or cubic foot), low-level (in the range of 1 microcurie per gallon or cubic foot), or intermediate (between high and low). See: curie. (09 Oct 1997) |
| radioactivity | <radiobiology> The quality of emitting or the emission of corpuscular or electromagnetic radiations consequent to nuclear disintegration, a natural property of all chemical elements of atomic number above 83 and possible of induction in all other known elements. (18 Nov 1997) |
| radioallergosorbent test | An allergy test done on a sample of blood. The aim with rast, as with skin tests, is to check for allergic sensitivity to specific substances. Rast stands for radioallergosorbent test. (12 Dec 1998) |
| radioautogram | Older term for autoradiograph. (05 Mar 2000) |
| radioautography | <technique> A specimen containing radioactive atoms is overlaid with a photographic emulsion (X-ray film), which is subsequently developed, revealing the localisation of radioactivity as a pattern of silver grains. Resolution is determined by the path length of the radiation and so the low energy beta emitting isotope, tritium, is usually used. The technique can be used to visualise radioactively labelled molecules or fragments of molecules, used in analyzing length and number of DNA fragments after they are separated by gel electrophoresis. (12 Mar 1998) |
| radiobicipital | Relating to the radius and the biceps muscle. (05 Mar 2000) |
| radiobicipital reflex | Contraction of the biceps muscle which sometimes occurs in the elicitation of the brachioradial reflex. (05 Mar 2000) |
| radiobiology | Study of the scientific principles, mechanisms, and effects of the interaction of ionizing radiation with living matter. (12 Dec 1998) |
| radiocalcium | A radioisotope of calcium, particularly calcium-45. (05 Mar 2000) |
| radiocarbon | A radioactive isotope of carbon; e.g., 14C. (05 Mar 2000) |
| radiocardiogram | A graphic record of the concentration of injected radioisotope within the cardiac chambers. (05 Mar 2000) |
| radiocardiography | The technique of recording or interpreting radiocardiograms. (05 Mar 2000) |
| radiocarpal | 1. Relating to the radius and the bones of the carpus. 2. On the radial or lateral side of the carpus. (05 Mar 2000) |
Synonyms : Health, Radiologic, Radiological Health, Health, Radiological
Synonyms :
Synonyms : Department, Hospital Radiology, Department, X-Ray, Departments, Hospital Radiology, Departments, X-Ray, Radiology Departments, Hospital, X-Ray Department, Department, X Ray, Departments, X Ray, Hospital Radiology Departments, X Ray Department, X Ray Departments
Synonyms : Archiving, Radiologic Picture, Information System, Radiologic, Information System, Radiology, Information Systems, Radiologic, Information Systems, Radiology, Radiologic Information System, Radiologic Information Systems, Radiologic Picture Archiving
Synonyms : Interventional Radiology
| radiotherapeutics |
(ra
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| radix |
The radix (Latin for root), also called base, is the number of various unique symbols (or digits or numerals) a positional numeral system uses to represent numbers. For example the decimal system uses 10 unique symbols viz. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 to represent various numbers and hence has radix 10. The highest symbol of a positional numeral system has the value one less than the value of the radix of that numeral system. ...
출처: en.wikipedia.org/wiki/Radix
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| radiant |
From earliest times, humankind has noticed flurries of meteors that seemed to emanate from particular points in the sky at particular times of the year. These flurries, now called meteor showers, are produced by small fragments of cosmic debris entering the earth's atmosphere at extremely high speed. Each time a periodic comet swings by the Sun, it produces large amounts of small particles which will eventually spread out along the entire orbit of the comet to form a meteoroid "stream". ...
출처: en.wikipedia.org/wiki/Radiant
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| radio- |
Radio is an East Coast rap album by hip hop artist LL Cool J, released in 1985 (see 1985 in music). LL Cool J had dropped out of high school to record the album (after the 12" "I Need the Single" became a moderate success the year before), and he was seventeen years old when it was released. Widely considered one of the first hip hop LPs that are a cohesive whole, the album was surprisingly popular for a hip hop album in the mid-1980s. ...
출처: en.wikipedia.org/wiki/Radio_(LL_Cool_J_album)
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| radiotherapeutic |
Radiation therapy (or radiotherapy) is the medical use of ionizing radiation as part of cancer treatment to control malignant cells (not to be confused with radiology, the use of radiation in medical imaging and diagnosis). Although radiotherapy is often used as part of curative therapy, it is occasionally used as a palliative treatment, where cure is not possible and the aim is for symptomatic relief. ...
출처: en.wikipedia.org/wiki/Radiotherapeutic
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| rad | in a radioactive manner |
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| rad | the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay |
| rad | a measure of radioactivity |
| rad | the branch of biology that studies the effects of radiation on living organisms |
| rad | a radioactive isotope of carbon |
| rad | a chemical analysis used to determine the age of organic materials based on their content of the radioisotope carbon-14 |
| rad | a joint between the distal end of the radius and the proximal row of carpal bones |
| rad | a chemist who specializes in nuclear chemistry |
| rad | the chemistry of radioactive substances |
| rad | a radioactive isotope of chlorine |
| rad | medium for communication |
| rad | a photographic image produced on a radiosensitive surface by radiation other than visible light (especially by X-rays or gamma rays) |