atomicism noun2 •Atomism.A consciousness which has got rid of the thought of absolute being would become a prey to endless atomicism and dissolution . — 1883 •The view that a system as is composed of separable, independent, self-contained units that can be examined and manipulated individually.In the history of knowledge, atomicism has been the moving force behind the vast majority of scientific breakthroughs, especially in physics and mechanics. — 1982