an effect, as in oil painting, of the tones shading into one another so that there are no sharp outlines
Origin of sfumatoItalian ; from past participle of sfumare, to evaporate
The blurring or softening of sharp outlines in painting by subtle and gradual blending of one tone into another.
Origin of sfumatoItalian, from past participle of sfumare, to evaporate, fade out : s-, from (from Latin ex-; see ex–) + fumare, to smoke (from Latin f&umacron;mare; see fumatory).
(usually uncountable, plural sfumatos)