| radioisotopes | Isotopes that exhibit radioactivity and undergo radioactive decay. (12 Dec 1998) |
|---|---|
| radioisotopic purity | A loose term commonly used to denote radionuclidic purity. (05 Mar 2000) |
| radiolabelled | See: tag. (05 Mar 2000) |
| radiolabelled 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) |
| radiolaria | <zoology> Order of rhizopods, usually having a siliceous skeleton, or shell, and sometimes radiating spicules. The pseudopodia project from the body like rays. It includes the polycystines. See Polycystina. Origin: NL. See Radioli. Source: Websters Dictionary (01 Mar 1998) |
| radiolarian | <zoology> Of or pertaining to the Radiolaria. One of the Radiolaria. Source: Websters Dictionary (01 Mar 1998) |
| radiolead | A radioactive isotope of lead. (05 Mar 2000) |
| radiolesion | A lesion produced by ionizing radiation. (05 Mar 2000) |
| radioli | Sing. Radiolus . [NL, dim. Of L. Radius radius: cf. L. Radiolus a feeble sunbeam. <zoology> The barbs of the radii of a feather; barbules. Source: Websters Dictionary (01 Mar 1998) |
| radioligand | <radiobiology> A small molecule with a radionuclide tracer attached, that binds to a specific large molecule. It is usually used for radioimmunoassay procedures. Origin: radio-+ L. Ligandus, that which is to be bound, fr. Ligo, to bind (20 Sep 2002) |
| radioligand assay | <radiobiology> Quantitative determination of receptor (binding) proteins in body fluids or tissue using radioactively labelled binding reagents (e.g., antibodies, intracellular receptors, plasma binders). (12 Dec 1998) |
| radiolite | <paleontology> A hippurite. Origin: L. Radius ray: cf. F. Radiolithe. Source: Websters Dictionary (01 Mar 1998) |
| radiologic | Pertaining to radiology. (18 Nov 1997) |
| radiologic health | Health concerns associated with the effects of radiation on the environment and on public and personal health. (12 Dec 1998) |
| radiological | Pertaining to radiology. (18 Nov 1997) |