An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 2 Search : union
International Astronomical Union (IAU)
  یکایش ِ جهانی ِ اخترشناسی   
Yekâyeš-e Jahâni-ye Axtaršenâsi

Fr.: Union Astronomique Internationale (UAI)   

An astronomical association of astronomers that is the controlling body of world astronomy. It was founded in Brussels in 1919.

→ international; → astronomical; → union.

union
  یکایش   
yekâyeš

Fr.: union   

General: The act of uniting two or more things.
A number of persons, organizations, states, etc., joined or associated together for some common purpose, e.g. → International Astronomical Union (IAU).
Math.: A set containing all the elements of two or more sets being combined. It is represented by ∪.

M.E. from O.Fr. union from L.L. unionem (nominative unio) "oneness, unity," from unus, → one, cognate with Pers. yek, as below.

Yekâyeš, from yek, → one, + -ây- epenthetic vowel, + -eš verbal noun suffix, → -tion.