1. a French school of art and architecture popular in the 1890s; characterized by stylized natural forms and sinuous outlines of such objects as leaves and vines and flowers;
WordNet (r) 3.0 (2006):
art nouveau
n 1: a French school of art and architecture popular in the
1890s; characterized by stylized natural forms and sinuous
outlines of such objects as leaves and vines and flowers