| radiothyroidectomy | The destruction of thyroid tissue by administration of radioactive iodine. (05 Mar 2000) |
|---|---|
| radiothyroxin | 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) |
| radiotoxaemia | Radiation sickness caused by the products of disintegration produced by the action of X-rays or other forms of radioactivity and by the depletion of certain cells and enzyme systems from the organism. Origin: radio-+ G. Toxikon, poison, + haima, blood (05 Mar 2000) |
| radiotracer | A radionuclide or radiolabelled chemical; a radioactive tracer. (05 Mar 2000) |
| radiotransparent | Allowing relatively free transmission of radiant energy. (05 Mar 2000) |
| radiotropic | Affected by radiation. Origin: radio-+ G. Trope, a turning (05 Mar 2000) |
| radioulnar | Relating to both radius and ulna. (05 Mar 2000) |
| radioulnar articular disk | The disk that holds together the distal ends of the radius and ulna; it is attached by its apex to a depression between the styloid process and distal surface of the head of the ulna, and by its base to the ridge separating the ulnar notch from the carpal surface of the radius. Synonym: discus articularis radioulnaris, radioulnar disk, radioulnar articular disk, triangular cartilage, triangular disk of wrist, triquetrous cartilage. (05 Mar 2000) |