The phrase "ordered structure" refers to a system or arrangement that has a clear and organized pattern. It means things are arranged in a specific way, following a set of rules or principles. Full definition
Surprisingly, they did not see any of the higher - order structures of the textbook model anywhere. (sciencedaily.com)
The finding indicates that, throughout evolution, higher order structures likely didn't grow larger out of proportion with corresponding primary areas. (sciencedaily.com)