An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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tensor perturbation
  پرتورش ِ تانسوری  
partureš-e tânsori
Fr.: perturbation tensorielle  

The perturbation in the → primordial Universe plasma caused by → gravitational waves. These waves stretch and squeeze space in orthogonal directions and bring about → quadrupole anisotropy in incoming radiation temperature.

See also: → tensor; → perturbation.