art nouveau
noun
or
Art Nouveau
/ˌɑɚtnuˈvoʊ/
or
Art Nouveau
/ˌɑɚtnuˈvoʊ/
Britannica Dictionary definition of ART NOUVEAU
[noncount]
:
a style of art, design, and architecture that uses curving lines and shapes that look like leaves and flowers
◊ Art Nouveau was popular in the U.S. and Europe in the late 1800s.