Definition of "Fragmentation" :

noun: separating something into fine particles

noun: the scattering of bomb fragments after the bomb explodes

noun: (computer science) the condition of a file that is broken up and stored in many different locations on a magnetic disk

"Fragmentation slows system performance because it takes extra time to locate and assemble the parts of the fragmented file."

noun: the disintegration of social norms governing behavior and thought and social relationships