An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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timelike interval
  اندروار ِ زمانسان  
andarvâr-e zamânsân
Fr.: intervalle genre temps  

The → space-time interval between two → events if it is real, i.e. ds2 > 0.

See also: → timelike; → interval.