mutagenize Syllabification: (mu·ta·gen·ize)Pronunciation: /ˈmyo͞otəjəˌnīz/Definition of mutagenize verb [with object] (usually as adjective mutagenized) Biology treat (a cell, organism, etc.) with mutagenic agents:mutagenized DNAmutagenize in other Oxford dictionaries Definition of mutagenize in the British & World English dictionary