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Radioiodine

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• Radioiron

  [rey-dee-oh-ahy-ern] /ˌreɪ di oʊˈaɪ ərn/ noun, Chemistry. 1. the radioactive isotope of , with atomic weight 59 and a half-life of 46 days: used chiefly as a tracer in biochemistry.

• Radioisotope

  [rey-dee-oh-ahy-suh-tohp] /ˌreɪ di oʊˈaɪ səˌtoʊp/ noun 1. a radioactive , usually artificially produced: used in physical and biological research, therapeutics, etc. /ˌreɪdɪəʊˈaɪsətəʊp/ noun 1. an isotope that is radioactive n. 1946, from radio-, comb. form of radiation, + isotope. radioisotope ra·di·o·i·so·tope (rā’dē-ō-ī’sə-tōp’) n. A naturally or artificially produced radioactive isotope. radioisotope (rā’dē-ō-ī’sə-tōp’) A radioactive isotope […]

• Radio-knife

  noun, Surgery. 1. an electrical instrument for cutting tissue that by searing severed blood vessels seals them and prevents bleeding.

• Radiolabel

  [rey-dee-oh-ley-buh l] /ˌreɪ di oʊˈleɪ bəl/ verb (used with object), radiolabeled, radiolabeling or (especially British) radiolabelled, radiolabelling. Chemistry. 1. (def 12). radiolabel ra·di·o·la·bel (rā’dē-ō-lā’bəl) v. ra·di·o·la·beled or ra·di·o·la·belled, ra·di·o·la·bel·ing or ra·di·o·la·bel·ling, ra·di·o·la·bels or ra·di·o·la·bels To tag a hormone, an enzyme, or other substance with a radiotracer. n. A radiotracer.

• Radioland

  [rey-dee-oh-land] /ˈreɪ di oʊˌlænd/ noun, (sometimes initial capital letter) Often Facetious. 1. the aggregate of listeners within the reach of a station’s transmission.

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