/ Dictionary / Index H harmonic mean: Meaning and Definition of Find definitions for: harmon'ic mean' Pronunciation: [key] — Statistics. Statistics. the mean obtained by taking the reciprocal of the arithmetic mean of the reciprocals of a set of nonzero numbers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. harmonic law harmonic minor scale Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language