DuckCorp Dico

Found one definition

1.                 From German - English Ding/FreeDict dictionary ver. 1.9-fd1:
                   
   
   
                   
                     
   Fla… /flˈɑː/
   anti-aircraft, ack-ackAA,  /ˈɑː/
      Synonyms: Flugabwehr…, Fliegerabwehr…, Luftabwehr…
    see: Flugabwehrfeuer, Fla-Feuer, Flugabwehrartillerie, Fla-Artillerie