An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian
فرهنگ ریشهشناختی اخترشناسی-اخترفیزیک
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focal
کانونی
kânuni (#)
Fr.: focal
Of or relating to a focus; placed at or measured from a focus.
See also:
→
focus
+ →
-al
.
