1. 
   Knuckling
   Matthew W. Needham, http://www.elyunquehotels.com/39.html?frm_data1=7&frm_data1_type=large, ...
   Found op http://en.wikipedia.org/wiki/Knuckling
   
   
2. 
   knuckling
   Talipes in the horse, caused by a contraction of the posterior fetlock tendons. ... (05 Mar 2000) ...
   Found op http://www.mondofacto.com/facts/dictionary?knuckling
   
   
3. 
   Knuckling
   • (p. pr. & vb. n.) of Knuckle
   Found op http://thinkexist.com/dictionary/meaning/knuckling/
   
   

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