The term "microscopic structure" refers to the small-scale components that make up larger organisms or materials. There are many synonyms for this term, including microarchitecture, nanoscale morphology, minuscule organization, and subcellular composition. These terms all refer to the same underlying concept of examining and understanding the tiny structures that make up larger systems. Whether studying the inner workings of a cell, the arrangement of atoms in a material, or the structure of a nanoscale device, understanding the microscopic structure is essential for a wide range of scientific fields, from biology to physics to materials science. Using precise language to describe these structures is key to communication among scientists and advancing our collective understanding of the natural world.