ART NOUVEAU  An art style of the late 1800's featuring curving, often swirling shapes based on organic forms.

FIGURE - GROUND  In two-dimensional art, the relationship between the principal forms and the background. Figure-ground ambiguity suggests equal importance for the two.

Aquatint

AQUATINT  A print produced by the same technique as an etching, except that the areas between the etched lines are covered with a powdered resin that protects the surface from the biting process of the acid bath. The granular appearance that results in the print aims at approximating the effects and gray tonalities of a watercolor drawing.