| radiophosphorus | A radioactive isotope of phosphorus; e.g., 32P. (05 Mar 2000) |
|---|---|
| radiopill | An instrument that transmits measurements by radio impulses, from within the body; e.g., measurements of pressure from within the small bowel. Synonym: radiopill. (05 Mar 2000) |
| radiopotassium | A radioactive isotope of potassium; e.g., 40K. (05 Mar 2000) |
| radioreaction | A reaction of the body to radiation. (05 Mar 2000) |
| radioreceptor | 1. A receptor that normally responds to radiant energy such as light or heat. 2. A receptor used as a binding agent for unlabelled and radiolabelled analyte in a type of competitive binding assay called radioreceptor assay. (05 Mar 2000) |
| radioreceptor assay | A competitive binding assay in which the binder is a membrane or tissue receptor rather than an antibody. (05 Mar 2000) |
| radioresistant | Resistant to radiation therapy. (16 Dec 1997) |
| radioscopy | Archaic term for fluoroscopy. Origin: radio-+ G. Skopeo, to view (05 Mar 2000) |
| radiosensitiser | A chemical substance that increases the radiosensitivity of tissues; restoring normal tissue oxygen tension to an anoxic region is also an effective radiosensitiser. (05 Mar 2000) |
| radiosensitive | Responsive to radiation therapy. (16 Dec 1997) |
| radiosensitivity | The condition of being readily affected by radiant energy. (05 Mar 2000) |
| radiosensitization | The use of chemotherapy or other agents which increase the sensitivity of tissue to the effects or radiation therapy, usually by inhibiting cellular repair or increasing the percentage of cells in mitotic phases of the growth cycle. (05 Mar 2000) |
| radiosodium | A radioactive isotope of sodium; e.g., 24Na. (05 Mar 2000) |
| radiostereoscopy | Simultaneou s viewing of two radiographs made in slightly different projections, usually with a device that reflects the image of one on each eye, allowing three-dimensional visualization of an object in relation to others. See: stereoradiography, stereoscope. Origin: radio-+ G. Stereos, solid, + skopeo, to view (05 Mar 2000) |
| radiostrontium | A radioactive isotope of strontium; e.g., 90Sr. (05 Mar 2000) |