An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian
فرهنگ ریشهشناختی اخترشناسی-اخترفیزیک
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Earth radius
شعاع ِ زمین
šo'â'-e zamin (#)
Fr.: rayon terrestre
The distance from the Earth’s center to its surface, about 6,371 km.
See also:
→
earth
; →
radius
.
