/ Dictionary / Index P power of appointment: Meaning and Definition of Find definitions for: pow'er of appoint'ment Pronunciation: [key] — Law. Law. the authority granted by a donor to a donee to select the person or persons who are to enjoy property rights or income upon the death of the donor or of the donee or after the termination of existing rights or interests. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. power mower power of attorney Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language