Impressionism was a 19th-century art movement that began as a loose association of Paris-based artists exhibiting their art publicly in the 1860s.
http://en.wikipedia.org/wiki/Impressionism

The impressionist style of painting is characterized chiefly by concentration on the general impression produced by a scene or object and the use of unmixed primary colors and ...
http://www.ibiblio.org/wm/paint/glo/impressionism/

Impressionism art, a movement in painting that originated in France in the late 19th century. Impressionist painters were considered radical in...
http://encarta.msn.com/encyclopedia_761553672/Impressionism_ ...

impressionism, in painting impressionism, in painting, late-19th-century French school that was generally characterized by the attempt to depict transitory visual impressions ...
http://encyclopedia2.thefreedictionary.com/impressionism

The impressionist movement in music was a movement in European classical music, mainly in France, that began in the late nineteenth century and continued into the middle of the ...
http://en.wikipedia.org/wiki/Impressionist_music