DuckCorp Dico

Found one definition

1.                 From en.wiktionary.org:
                   
   
   
                   
                     
   [radius]
   
   ** German
   
   *** Etymology
   [de].
   
   *** Pronunciation
   
    - [de]
    - [de]
   *** Noun
   [m,-,Radii:Radien]
   
    1. [de]  radius  [bone]
    2. [de]  radius [line segment]
    3. [de]  radius [length of that line segment]
   **** Declension
   [m,-,Radii:Radien]
   
   **** Derived terms
   
    - [de]
   *** Further reading
   
    - [R:de:Duden]