desertification Syllabification: (de·sert·i·fi·ca·tion)Pronunciation: /diˌzərtəfiˈkāSHən/Translate desertification | into German Definition of desertification noun the process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture. desertification in other Oxford dictionaries Definition of desertification in the British & World English dictionary