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: 4 Search : trajectory
ballistic trajectory
  ترایش ِ پرتابیک   
tarâyeš-e partâbik

Fr.: trajectoire balistique   

A curved path followed by an unpowered object that is being acted upon only by gravitational forces and the friction of the medium through which it moves.

ballistic; → trajectory.

isogonal trajectory
  ترایشانه‌ی ِ ایزوکنج   
tarâyešâne-ye izokonj

Fr.: trajectoire isogonale   

Math.: A curve which intersects every member of a given one-parameter family of curves at one and the same angle.

isogonal; → trajectory.

orthogonal trajectory
  ترایشانه‌ی ِ ارداکنج   
tarâyešâne-ye ardâkonj

Fr.: trajectoire orthogonale   

Math.: An → isogonal trajectory where the family of curves are cut at right angles.

orthogonal; → trajectory.

trajectory
  ترایشانه   
tarâyešâné

Fr.: trajectoire   

Physics: The line or curve described by an object moving through space.
Math.: A curve or surface that cuts all of a given family of curves or surfaces at the same angle.

From Mod.L. trajectoria, from feminine of trajectorius "of or pertaining to throwing across," from L. trajectus "thrown over or across," p.p. of trajicere "throw across," from L. → trans- "across" + icere, combining form of jacere "to throw," → eject.

Tarâyešâné, from tarâ- "across," → trans-, + -y- epenthetic + ešân, present stem of ešândan, → eject, + relation suffix .