noun Hen·ry de [ahn-ree duh] /ɑ̃ˈri də/, 1896–1972, French author. nounHenri (Millon) de (ɑ̃ri də). 1896–1972, French novelist and dramatist: his novels include Les Jeunes Filles (1935–39) and Le Chaos et la nuit (1963)