nectarinePronunciation: /ˈnɛktərɪn, -iːn/Translate nectarine | into French | into Italian | into Spanish Definition of nectarine noun a peach of a variety with smooth red and yellow skin and rich, firm flesh. Origin: early 17th century (also used as an adjective meaning 'nectar-like'): from nectar + -ine4nectarine in other Oxford dictionaries Definition of nectarine in the US English dictionary