Definitions for sfumatosfuˈmɑ toʊ
Random House Webster's College Dictionary
gradation of tone used to blur the outlines of a form in painting.
Category: Fine Arts
Origin of sfumato:
1840–50; < It, ptp. of sfumare to gradate tone or color
In painting, the application of subtle layers of translucent paint so that there is no visible transition between colors, tones and often objects.
Origin: sfumato, 'shaded, toned down' (1909)
having vague outlines, and colors and shades so mingled as to give a misty appearance; -- said of a painting