vinification Syllabification: (vin·i·fi·ca·tion)Pronunciation: /ˌvinəfiˈkāSHən/Definition of vinification noun the conversion of grape juice or other vegetable extract into wine by fermentation. Derivatives vinifyPronunciation: /ˈvinəˌfī/ verb (vinifies, vinifying, vinified)vinification in other Oxford dictionaries Definition of vinification in the British & World English dictionary