An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 2 Search : persistent
persistent
  پریستنده   
paristandé

Fr.: persistant   

Persisting, especially in spite of opposition, obstacles, discouragement, etc.; persevering (Dictionary.com).

Adjective from → persist.

X-ray persistent
  پرتو ِ X پریستنده   
partow-e X paristandé

Fr.: rayons X persistants   

An → X-ray source that does not display emission → outbursts, in contrast to → X-ray transients.

X-ray; → persistent.