An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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OH source
  خنِ OH (هیدروکسیل)  
xan-e OH (hidroksil)
Fr.: source OH  

An astronomical source emitting microwave radiation characteristic of the hydroxyl OH molecule, especially one showing a maser effect. OH sources are found in molecular clouds in interstellar medium and in the cool envelopes of evolved stars.

See also: OH, chemical compound hydroxyl; → source.