ozonolysis

noun
ozon·​ol·​y·​sis | \ ˌō-(ˌ)zō-ˈnäl-ə-səs How to pronounce ozonolysis (audio) \
plural ozonolyses\ -​ə-​ˌsēz How to pronounce ozonolyses (audio) \

Medical Definition of ozonolysis

: the cleavage of an unsaturated organic compound at the position of unsaturation by conversion to the ozonide followed by decomposition (as by hydrolysis)