| radiation poisoning | A systemic condition caused by substantial whole-body irradiation, seen after nuclear explosions or accidents, rarely after radiotherapy. Manifestations depend on dose, ranging from anorexia, nausea, vomiting, and mild leukopenia, to thrombocytopenia with haemorrhage, severe leukopenia with infection, anaemia, central nervous system damage, and death. Synonym: radiation poisoning. (05 Mar 2000) |
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| radiation risks | The risks to health posed by exposure to radiation. Exposure comes from both natural sources and from man-made ones (medical and occupational). See: background radiation.Because any amount of radiation may cause cellular mutations, considerable effort has been made by government and independent researchers to establish exposure guidelines. In most cases, natural sources account for the bulk of received radiation, with artificial sources adding only a small percentage to the average annual dose. Public perception of the hazards of radiation is often at odds with scientific positions on the matter. In part, equivocal research results (as in attempts to assess the added cancer risk posed by mammograms) contribute to public fears. Some psychological studies have concluded that whether or not public fears of nuclear power plants and other radiation sources are justified, the added stress caused by such fears in itself constitutes a threat to health that should be addressed. (05 Mar 2000) |
| radiation sickness | A systemic condition caused by substantial whole-body irradiation, seen after nuclear explosions or accidents, rarely after radiotherapy. Manifestations depend on dose, ranging from anorexia, nausea, vomiting, and mild leukopenia, to thrombocytopenia with haemorrhage, severe leukopenia with infection, anaemia, central nervous system damage, and death. Synonym: radiation poisoning. (05 Mar 2000) |
| radiation therapy | <radiobiology> Treatment with high energy radiation from X-rays or other sources of radiation. (16 Dec 1997) |
| radiation tolerance | The ability of some cells or tissues to withstand ionizing radiation without serious injury. Tolerance depends on the species, cell type, and physical and chemical variables, including radiation-protective agents and radiation-sensitizing agents. (12 Dec 1998) |
| radiation weighting factor | In radiation protection, a factor weighting the absorbed dose of radiation of a specific type and energy for its effect on tissue. See: equivalent dose. (05 Mar 2000) |
| radiation, ionizing | Electromagnetic or corpuscular radiation capable of producing ions, directly or indirectly, in its passage through matter. The wavelengths are equal to or smaller than those of short (far) ultraviolet radiation and include gamma and X-rays and high-energy elementary particles. (12 Dec 1998) |
| radiation, nonionizing | Electromagnetic radiation which does not produce ions in matter through which it passes. Its wavelengths are generally greater than those of far ultraviolet radiation and range through the longest radio waves. (12 Dec 1998) |
| radiation-protective agents | Drugs used to protect against ionizing radiation. They are usually of interest for use in radiation therapy but have been considered for other, e.g. Military, purposes. (12 Dec 1998) |
| radiation-sensitizing agents | Drugs used to potentiate the effectiveness of radiation therapy in destroying unwanted cells. (12 Dec 1998) |
Synonyms :
Synonyms : Fibrosis, Radiation, Radiation Fibrosis, Radiation Pneumonia, Fibroses, Radiation, Pneumonias, Radiation, Pneumonitides, Radiation, Radiation Fibroses, Radiation Pneumonias, Radiation Pneumonitides
Synonyms : Protection, Radiation, Protections, Radiation, Radiation Protections
Synonyms : Sensitivity, Radiation, Tolerance, Radiation, Radiation Sensitivities, Radiation Tolerances, Radiosensitivities, Sensitivities, Radiation, Tolerances, Radiation
Synonyms : Ionizing Electromagnetic Radiation, Ionizing Radiation, Radiation, Ionizing Electromagnetic, Electromagnetic Radiations, Ionizing, Ionizing Electromagnetic Radiations, Ionizing Radiations, Radiations, Ionizing, Radiations, Ionizing Electromagnetic
| radiation absorbed dose |
The amount of ionizing radiation absorbed by a material, such as human tissue.
출처: www.nsc.org/ehc/guidebks/wippglos.htm
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| radiation |
Particles or rays emitted by radioactive substances from the unstable nuclei of their atoms. (See alpha particle, beta particle and gamma ray)
출처: www.pbs.org/wgbh/pages/frontline/shows/reaction/et...
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| radiation enteritis |
An irritation of the small intestine secondary radiation therapy. Often times patients who have lymphoma may receive abdominal radiation as part of their therapy. Radiation enteritis is a possible complication.
출처: www.gastromd.com/definitionsr.html
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| radiation colitis |
An irritation secondary to radiation therapy. This is commonly associated with patients who have received external beam radiation therapy for prostate cancer. It may occur in any part of the gastrointestinal tract.
출처: www.gastromd.com/definitionsr.html
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| radiation syndrome |
The effects of high dose x-rays, including problems with the gastrointestinal tract and other tissues that have to repair themselves frequently, like the skin.
출처: www.lieberson.com/en/neurgosurgery_glossary/r.htm
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