Art Deco Terminology
The term 'Art Deco' is taken from the name of the 1925 Paris exhibition titled Exposition Internationale des Arts Décoratifs et Industriels Modernes. The most popular and respected French artists of the day showcased their work at this exhibition.
Jewelry makers, graphic artists, painters, architects, fashion designers and all other manner of craftsmen and women displayed their pieces at the exhibition. All of the works had a commonality - they were not only functional, but also very beautiful (i.e. decorative).
The term came up again in an article by the architect, Le Corbusier, titled '1925: Arts Déco' and in 1966 at the retrospective exhibition titled Les années '25: Art Deco/Bauhaus/Stijl/Esprit Nouveau. But it wasn't until Bevis Hiller published his book, Art Deco of the 20s and 30s in 1968 that term was used to truly define that style movement.
In essence, Art Deco is a modern interpretation of the art movement that preceded it, Art Nouveau. So it may be helpful to structure the Art Deco definition in contrast to Art Nouveau.