An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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aberration
  بیراهش  
birâheš
Fr.: aberration  

  1. An imperfection in the imaging properties of a → lens or → mirror.
    The main aberrations are → chromatic aberration, → spherical aberration, → coma, → astigmatism, → distortion, and → field curvature.

  2. → aberration of starlight.

See also: → aberration angle→ aberration constan→ aberration of starlight→ aberration orbit→ annual aberration→ chromatic aberration→ constant of aberration→ diurnal aberration→ optical aberration→ planetary aberration→ relativistic aberration→ secular aberration→ spherical aberration→ stellar aberration.

Etymology (EN): Aberration, from L. aberrationem, from aberrare “go astray,” → aberrate.

Etymology (PE): Birâheš, from birâidan, → aberrate.