| radioactive iodide uptake test | A test of thyroid function in which 131I-iodide is given orally; after 24 hours, the amount present in the thyroid gland is measured and compared with normal values. Synonym: radioactive iodide uptake test, RAI test. (05 Mar 2000) |
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| radioactive iodine | Iodine that gives off radiation. See radioiodine. (12 Dec 1998) |
| radioactive isotope | <physics, radiobiology> An isotope of an element that has an unstable nucleus, it tries to stabilise itself by giving off ionising radiation. (09 Oct 1997) |
| radioactive pollutants | Radioactive substances which act as pollutants. They include chemicals whose radiation is released via radioactive waste, nuclear accidents, fallout from nuclear explosions, and the like. (12 Dec 1998) |
| radioactive probe | A nucleic acid fragment, labelled by a radioisotope, biotin, etc., that is complementary to a sequence in another nucleic acid (fragment) and that will, by hydrogen binding to the latter, locate or identify it and be detected; a diagnostic technique based on the fact that every species of microbe possesses some unique nucleic acid sequences which differentiate it from all others, and thus can be used as identifying markers or "fingerprints." (05 Mar 2000) |
| radioactive thyroxine | Thyroxine in which a radioisotope of iodine (125I or 131I) is incorporated into its molecule; used in experiments tracing the metabolism of thyroxine. Synonym: labelled thyroxine, radiolabelled thyroxine, radiothyroxin. (05 Mar 2000) |
| 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) |
| 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) |
Synonyms : Isotopes, Radioactive
Synonyms : Assay, Radioligand, Assay, Radioreceptor, Assays, Radioligand, Assays, Radioreceptor, Protein Binding Radioassay, Protein-Binding Radioassays, Radioassay, Protein-Binding, Radioassays, Protein-Binding, Radioligand Assays, Radioreceptor Assays
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
| radiostrontium |
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| radiosurgery |
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| radiotelemetry |
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| radiotherapeutics |
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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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| radi | the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay |
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| radi | a measure of radioactivity |
| radi | the branch of biology that studies the effects of radiation on living organisms |
| radi | a radioactive isotope of carbon |
| radi | a chemical analysis used to determine the age of organic materials based on their content of the radioisotope carbon-14 |
| radi | a joint between the distal end of the radius and the proximal row of carpal bones |
| radi | a chemist who specializes in nuclear chemistry |
| radi | the chemistry of radioactive substances |
| radi | a radioactive isotope of chlorine |
| radi | medium for communication |
| radi | a photographic image produced on a radiosensitive surface by radiation other than visible light (especially by X-rays or gamma rays) |
| radi | a message transmitted by wireless telegraphy |