An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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orthocenter
  اردامرکز  
ardâmarkaz
Fr.: orthocentre  

Of a triangle, the point where the three → altitudes of the → triangle converge.

See also: → ortho-; → center.