An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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pre-cluster core
  مغزه‌ی ِ پیش-خوشه‌ای  
maqze-ye piš-xuše-yi
Fr.: cœur pré-amas  

A precursor of a small, loosely bound → star cluster (→ bound cluster) as well as an → OB association, with masses ranging from about 10 to 1000 → solar masses or more.

See also: → pre-; → cluster; → core.