An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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harmonic series
  سری ِ هماهنگ  
seri-ye hamâhang
Fr.: série harmonique  

Overtones whose frequencies are integral multiples of the → fundamental frequency. The fundamental frequency is the first harmonic.

See also: → harmonic; → series.