neoimpressionism

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A movement in late 19th-century painting led by Georges Seurat that was stricter and more formal than impressionism in composition and employed pointillism as a technique.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Painting) A theory or practice which is a further development, on more rigorously scientific lines, of the theory and practice of Impressionism, originated by George Seurat (1859-91), and carried on by Paul Signac (1863- -) and others. Its method is marked by the laying of pure primary colors in minute dots upon a white ground, any given line being produced by a variation in the proportionate quantity of the primary colors employed. This method is also known as Pointillism (stippling).

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A genre of French impressionist art that used pointillism to achieve a more formal composition