gambogeEnglishOxford Dictionary of Englishgamboge /ɡamˈbəʊ(d)ʒ , ɡamˈbuːʒ / ▸ noun [mass noun] a gum resin produced by various East Asian trees, used as a yellow pigment and in medicine as a purgative. The trees belong to the genus Garcinia (family Guttiferae), in particular G. xanthochymus. – ORIGIN early 17th century: via Latin forms from the name of Cambodia.