Artistic technique associated with Seurat and Signac (11)
I believe the answer is:
pointillism
(Other definitions for pointillism that I've seen before include "Painting style using dots and small strokes, associated with Georges Seurat in late 19th-century France" , "art technique" , "Neo-impressionist painting style" , "Late 19th-century French style of painting using dots of colour" , "Neo-Impressionist technique" .)