1. 
   reciprocating
   [adj] - moving alternately backward and forward
   Found op http://www.webdictionary.co.uk/definition.php?query=reciprocating
   
   
2. 
   reciprocating
   reciprocatory adjective moving alternately backward and forward
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=reciprocating
   
   
3. 
   Reciprocating
   • (p. pr. & vb. n.) of Reciprocate
   Found op http://thinkexist.com/dictionary/meaning/reciprocating/
   
   
4. 
   reciprocating
   reciprocating 1. Interchanging; each person or group giving or doing to the other the same thing; to give, to feel, etc., in return. 2. To give and to receive reciprocally; to interchange; such as, to reciprocate favors. 3. To cause or to move alternately backward and forward. 4. To make a return...
   Found op http://www.wordinfo.info/words/index/info/view_unit/1831/
   
   
5. 
   reciprocating
   1) Moving alternately backward and forward 2) Mutual 3) Reciprocal 4) Reciprocatory
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/reciprocating/1
   
   

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