noun Chemistry.
the dissociation of molecules by ionizing radiation.

1945–50; radio- + -lysis

radiolytic [rey-dee-oh-lit-ik] , adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
radiolysis (ˌreɪdɪˈɒlɪsɪs)
chemical decomposition caused by radiation, such as a beam of electrons or X-rays

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American Heritage
Medical Dictionary

radiolysis ra·di·ol·y·sis (rā'dē-ŏl'ĭ-sĭs)
n. pl ra·di·ol·y·ses (-sēz)
Molecular decomposition of a substance as a result of radiation.

ra'di·o·lyt'ic (-ə-lĭt'ĭk) adj.
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