the.com/divisionism

means A late-19th-century painting technique that separates color into distinct dots or strokes of pure pigment, left unmixed on the canvas so the viewer's eye optically blends them from a distance.

from From 'divide' plus the '-ism' suffix marking a movement or doctrine — the name simply describes the method: dividing color into its component touches rather than mixing it on the palette. It's closely tied to Pointillism (the technique named for its literal points of paint) and to the broader Neo-Impressionist movement associated with painters like Seurat and Signac, who grounded the approach in contemporary theories of optics and color perception.