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3 definitions found
 for Harmonic progression
From The Collaborative International Dictionary of English v.0.48 :

  Harmonic \Har*mon"ic\ (h[aum]r*m[o^]n"[i^]k), Harmonical
  \Har*mon"ic*al\ (-[i^]*kal), a. [L. harmonicus, Gr. "armoniko`s;
     cf. F. harmonique. See Harmony.]
     1. Concordant; musical; consonant; as, harmonic sounds.
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              Harmonic twang! of leather, horn, and brass. --Pope.
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     2. (Mus.) Relating to harmony, -- as melodic relates to
        melody; harmonious; esp., relating to the accessory sounds
        or overtones which accompany the predominant and apparent
        single tone of any string or sonorous body.
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     3. (Math.) Having relations or properties bearing some
        resemblance to those of musical consonances; -- said of
        certain numbers, ratios, proportions, points, lines,
        motions, and the like.
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     Harmonic interval (Mus.), the distance between two notes of
        a chord, or two consonant notes.
     Harmonical mean (Arith. & Alg.), certain relations of
        numbers and quantities, which bear an analogy to musical
     Harmonic motion, the motion of the point A, of the foot of
        the perpendicular PA, when P moves uniformly in the
        circumference of a circle, and PA is drawn perpendicularly
        upon a fixed diameter of the circle. This is simple
        harmonic motion. The combinations, in any way, of two or
        more simple harmonic motions, make other kinds of harmonic
        motion. The motion of the pendulum bob of a clock is
        approximately simple harmonic motion.
     Harmonic proportion. See under Proportion.
     Harmonic series or Harmonic progression. See under
     Spherical harmonic analysis, a mathematical method,
        sometimes referred to as that of Laplace's Coefficients,
        which has for its object the expression of an arbitrary,
        periodic function of two independent variables, in the
        proper form for a large class of physical problems,
        involving arbitrary data, over a spherical surface, and
        the deduction of solutions for every point of space. The
        functions employed in this method are called spherical
        harmonic functions. --Thomson & Tait.
     Harmonic suture (Anat.), an articulation by simple
        apposition of comparatively smooth surfaces or edges, as
        between the two superior maxillary bones in man; -- called
        also harmonia, and harmony.
     Harmonic triad (Mus.), the chord of a note with its third
        and fifth; the common chord.
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From The Collaborative International Dictionary of English v.0.48 :

  Progression \Pro*gres"sion\, n. [L. progressio: cf. F.
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     1. The act of moving forward; a proceeding in a course;
        motion onward.
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     2. Course; passage; lapse or process of time.
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              I hope, in a short progression, you will be wholly
              immerged in the delices and joys of religion.
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     3. (Math.) Regular or proportional advance in increase or
        decrease of numbers; continued proportion, arithmetical,
        geometrical, or harmonic.
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     4. (Mus.) A regular succession of tones or chords; the
        movement of the parts in harmony; the order of the
        modulations in a piece from key to key.
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     Arithmetical progression, a progression in which the terms
        increase or decrease by equal differences, as the numbers
        [lbrace2]2, 4, 6, 8, 1010, 8, 6, 4, 2[rbrace2] by the
        difference 2.
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     Geometrical progression, a progression in which the terms
        increase or decrease by equal ratios, as the numbers
        [lbrace2]2, 4, 8, 16, 32, 6464, 32, 16, 8, 4, 2[rbrace2]
        by a continual multiplication or division by 2.
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     Harmonic progression, a progression in which the terms are
        the reciprocals of quantities in arithmetical progression,
        as 1/2, 1/4, 1/6, 1/8, 1/10.
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From WordNet (r) 3.0 (2006) :

  harmonic progression
      n 1: (mathematics) a progression of terms whose reciprocals form
           an arithmetic progression

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