An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 2 Search : abstraction
abstraction
  آهنجش   
âhanješ (#)

Fr.: abstraction   

1) The mental process in which an element or quality is separated from a total object. Also the result of this process.
2) Chemistry: → abstraction reaction.

Verbal noun from → abstract; → -tion.

abstraction reaction
  واژیرش ِ آهنجش   
vâžireš-e âhanješ (#)

Fr.: réaction d'abstraction   

Chemistry: A bimolecular chemical reaction that involves removal of an atom or ion from a molecule. For example, hydrogen abstraction from methane: CH4 + Cl → CH3 + HCl.

abstraction; → reaction.