1. 
   Arcing
   Aspect ratio conversion.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   arcing
   arcing, arced 1. To form an arc. 2. To move or seem to move in a curved path: 'We observed the rainbow arcing across the sky.'
   Found op http://www.wordinfo.info/words/index/info/view_unit/3581/
   
   
3. 
   Arcing
   Flying a circular flight path which allows another aircraft the use of cutoff to gain closure.
   Found op http://www.f-16.net/glossary-A.html
   
   
4. 
   arcing
   1) Aspect ratio conversion 2) Moving in a curved path 3) Not going straight
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/arcing/1
   
   

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