art dec·o also Art Dec·o 
(ärt dĕkō)
(ärt dĕkō)n.
A decorative and architectural style of the period 1925-1940, characterized by geometric designs, bold colors, and the use of plastic and glass.
[French Art Déco, from Exposition Internationale des Arts Décoratifs et Industriels Modernes, a 1925 exposition in Paris, France.]