| radiology, interventional | Subspeciality of radiology that combines organ system radiography, catheter techniques and sectional imaging. (12 Dec 1998) |
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| radiolucency | The state of being radiolucent. (05 Mar 2000) |
| radiolucent | X-rays shine right through things that are radiolucent ( lucere in latin means to shine). Radiolucent structures appear black on exposed X-ray film. (12 Dec 1998) |
| radiolus | A probe or sound. Origin: L. Dim. Of radius, spoke (05 Mar 2000) |
| radiometer | 1. A forestaff. 2. <physics> An instrument designed for measuring the mechanical effect of radiant energy. It consists of a number of light discs, blackened on one side, placed at the ends of extended arms, supported on an a pivot in an exhausted glass vessel. When exposed to rays of light or heat, the arms rotate. Origin: L. Radius radius: cf. F. Radiometre. Source: Websters Dictionary (01 Mar 1998) |
| radiometry | The measurement of radiation by photography, as in X-ray film and film badge, by geiger-mueller tube, and by scintillation counting. (12 Dec 1998) |
| radiomicrometer | <physics> A very sensitive modification or application of the thermopile, used for indicating minute changes of radiant heat, or temperature. Origin: Radio- + micrometer. Source: Websters Dictionary (01 Mar 1998) |
| radiomimetic | Imitating the biologic effects of radiation, as in the case of chemicals such as nitrogen mustards. Origin: radio-+ G. Mimetikos, imitative (05 Mar 2000) |
| radiomuscular | Relating to the radius and the neighboring muscles; denoting certain nerves and muscular branches of the radial artery. (05 Mar 2000) |
| radionecrosis | Necrosis due to radiation; e.g., after excessive exposure to x-or gamma rays. See: radiation burn. (05 Mar 2000) |
| radioneuritis | Neuritis caused by prolonged or repeated exposure to X-rays or radium. (05 Mar 2000) |
| radionitrogen | A radioactive isotope of nitrogen; e.g., 13N. (05 Mar 2000) |
| radionuclide | An isotope of artificial or natural origin that exhibits radioactivity.Radionuclides serve as agents in nuclear medicine and genetic engineering, play a role in computer imaging for diagnosis and experiment, and account for a percentage of background radiation to which humans are exposed. In cancer therapy, radionuclides that localise to certain organs (e.g., radioactive iodine or gallium), deliver cytotoxic radiation doses to tumours. Similarly, radionuclides can be yoked to monoclonal antibodies engineered to attack specific populations of cancerous cells. In positron emission tomography, glucose molecules tagged with radionuclides are injected into the bloodstream. The gamma radiation emitted by the decay of the radionuclides reveals areas of active glucose uptake and thus offers a gauge of cell metabolism and function. (05 Mar 2000) |
| radionuclide angiocardiography | The display, by means of a stationary scintillation camera device, of the passage of a bolus of a rapidly injected radiopharmaceutical. Synonym: radionuclide ventriculography. (05 Mar 2000) |
| radionuclide angiography | The measurement of visualization by radiation of any organ after a radionuclide has been injected into its blood supply. It is used to diagnose heart, liver, lung, and other diseases and to measure the function of those organs, except renography, for which radioisotope renography is available. (12 Dec 1998) |
| radiation therapy |
Radiation therapy (also called radiotherapy) uses high-energy radiation from x-rays and other sources to kill cancer cells and shrink tumors. Radiation may come from a machine outside the body (external radiation therapy) or from materials that produce radiation (radioisotopes) that are placed inside the body in the area where the cancer cells are found (internal radiation therapy, implant radiation, or brachytherapy). ...
출처: nydailynews.healthology.com/nydailynews/15836.htm
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| radicle |
An embryonic root.
출처: www.botanyvt.com/pages/dictionary.shtml
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| radicle |
The embryonic primary root.
출처: www.knowledgebank.irri.org/RP/growthStages/Glossar...
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| rad. |
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 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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