An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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derivative
  واخنه  
vâxané
Fr.: 1) dérivé; 2; 3) dérivée  

  1. General: Derived from another; not original or primitive.

  2. Math.: For a → function  y = f(x), the → limit of the → ratio of the → increment of the function, Δy, to the increment of the → variable, Δx, as the latter tends to → zero. Derived function; result of → differentiation.

  3. Chemistry: Substance derived or prepared from some other → substance.

Etymology (EN): From M.E. derivatif, from L.L. derivativus, from derivat(us), p.p. of derivare, → derive

  • -ivus.

Etymology (PE): Vâxané, noun from vâxan, present stem of vâxanidan,
→ derive.