babassuPronunciation: /ˌbabəˈsuː/ (also babaçu)Definition of babassu noun a Brazilian palm that yields an edible oil which is sometimes used in cosmetics. Genus Orbignya, family Palmae Origin: 1920s: from Brazilian Portuguese babaçu, from Tupi ybá 'fruit' + guasu 'large'babassu in other Oxford dictionaries Definition of babassu in the US English dictionary