oviduct Syllabification: (o·vi·duct)Pronunciation: /ˈōviˌdəkt/Definition of oviduct noun Anatomy & Zoology the tube through which an ovum or egg passes from an ovary. Derivatives oviducalPronunciation: /ˌōvəˈdo͞okəl/ adjective oviductalPronunciation: /ˌōvəˈdəktəl/ adjective oviduct in other Oxford dictionaries Definition of oviduct in the British & World English dictionary