An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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diproton
  دیپروتون  
diproton
Fr.: diproton  

An → isotope of → helium that consists of two → protons, without any → neutrons.
It is extremely → unstable.

See also: → di-; → proton.