An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

Homepage  Preliminaries  Abbreviations  Acknowledgments  References 
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
beam splitter
  فاقگر ِ تابه  
fâqgar-e tâbé
Fr.: lame séparatrice  

A partially reflecting mirror which permits a part of the light beam to pass through and reflects the rest.

Etymology (EN): → beam; splitter, from to split, from M.Du. splitten, from P.Gmc. spl(e)it-, PIE (s)plei- “to split, splice.”

Etymology (PE): Fâqgar, from fâq “split, breach, division” + tâbé→ beam.