Entry 1 sense Webster, 1913 ozonification /(ō̇*zō`nĭ*fĭ*kā"shŭn)/ · o·zo·ni·fi·ca·tion · IPA 01 n. The act or process of producing, or of subjecting to the action of, ozone. 1. The act or process of producing, or of subjecting to the action of, ozone.(Chem.)