An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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isochrone
  ایزوزمان  
izozamân
Fr.: isochrone  

A curve on a → Hertzsprung-Russell diagram connecting all stars having the same age.

Etymology (EN): Isochrone, back formation from isochronal, from Gk. → iso- + khronos “time.”

Etymology (PE): Izozamân, from → iso- + zamân→ time.