power structure Syllabification: (pow·er struc·ture)Entry from US DictionaryDefinition of power structure noun 1the hierarchy that encompasses the most powerful people in an organization:inside the power structure of the American Catholic Church 2the people in a power structure:there are certain natural leaders of the underclasses, and the power structure interprets what they do as a crimepower structure in other Oxford dictionaries Definition of power structure in the US English dictionary