radiolysisn.
/ˌreɪdɪˈɒlᵻsɪs/, U.S. /ˌreɪdiˈɑləsəs/ Chemistry.
The decomposition of a compound by the action of ionizing radiation; an instance of this.
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the world > matter > physics > atomic nucleus > radioactivity > ionizing radiation > [noun] > decomposition of compound
radiolysis1948
pulse radiolysis1961
1948 Jrnl. Physical & Colloid Chem. 52 516 The kinetics of the radiolysis of pure water and of indirect action on solutes are discussed.
1977 J. Weisman Elem. Nucl. Reactor Design ii. 35 Ions which participate in electron-transfer reactions can combine with H or OH ions thus preventing recombination and leading to an increased radiolysis.
1985 Radiation Physcis & Chem. 26 267/2 The radiolyses were conducted at various temperatures.
2004 J. S. Walker Three Mile Island vii. 151 Hendrie became troubled about the amount of oxygen that would be generated in the vessel through the process of radiolysis, in which radiation caused the disassociation of water molecules into hydrogen and oxygen.
This entry has been updated (OED Third Edition, June 2008; most recently modified version published online March 2022).
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