/ Dictionary / Index P power structure: Meaning and Definition of Find definitions for: pow'er struc"ture Pronunciation: [key] the system of authority or influence in government, politics, education, etc.: The state elections threatened to upset the existing power structure. the people who participate in such a system: She hoped to become a part of the power structure. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. power steering power supply Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language