Polygranular is a word used to describe something that is made up of many small grains or particles. Synonyms for this word include granulated, particulate, fine-grained, finely divided, powder-like, and fragmentary. These terms are often used to describe substances or materials that are made up of small particles or grains, such as sand, gravel, or powdered metals. Polygranular materials are often found in nature, such as in rock formations or soils. In addition, they are also commonly used in manufacturing and construction processes, where materials must be finely ground and divided to create a desired texture or consistency.