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: 1 Search : secular change
secular change
  دگرشد ِ دیریاز، دگرش ِ ~   
degaršod-e diryâz, degareš-e ~

Fr.: changement séculaire   

A continuous, non-periodic change in one of the attributes of the states of a system. Often, a change in an orbit due to dissipation of energy. See also → canonical change.

→ secular; → change.