radioisotope

[rey-dee-oh-ahy-suh-tohp] /ˌreɪ di oʊˈaɪ səˌtoʊp/
noun
1.
a radioactive isotope, usually artificially produced: used in physical and biological research, therapeutics, etc.
Origin
1940-45; radio- + isotope
Related forms
radioisotopic
[rey-dee-oh-ahy-suh-top-ik] /ˌreɪ di oʊˌaɪ səˈtɒp ɪk/ (Show IPA), adjective
British Dictionary definitions for radioisotope

radioisotope

/ˌreɪdɪəʊˈaɪsətəʊp/
noun
1.
an isotope that is radioactive
Derived Forms
radioisotopic (ˌreɪdɪəʊˌaɪsəˈtɒpɪk) adjective
Word Origin and History for radioisotope
n.

1946, from radio-, comb. form of radiation, + isotope.

radioisotope in Medicine

radioisotope ra·di·o·i·so·tope (rā'dē-ō-ī'sə-tōp')
n.
A naturally or artificially produced radioactive isotope.

radioisotope in Science
radioisotope
  (rā'dē-ō-ī'sə-tōp')   
A radioactive isotope of a chemical element. Carbon 14 and radon 222 are examples of naturally occurring radioactive isotopes.
Encyclopedia Article for radioisotope

radioactive isotope

any of several species of the same chemical element with different masses whose nuclei are unstable and dissipate excess energy by spontaneously emitting radiation in the form of alpha, beta, and gamma rays.

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