malvoisiePronunciation: /ˈmalvɔɪzi, ˌmalvɔɪˈziː, malvwazi/Definition of malvoisie noun [mass noun] (in French-speaking countries) any of several grape varieties used to make full-flavoured white wines. Origin:from Old French malvesie, from the French form of Monemvasia (see malmsey)malvoisie in other Oxford dictionaries Definition of malvoisie in the US English dictionary