1. 
   habit tic
   A habitual repetition of some grimace, shrug of the shoulder, twisting or jerking of the head, or the like. ... (05 Mar 2000) ...
   Found op http://www.mondofacto.com/facts/dictionary?habit+tic
   
   
2. 
   habit tic
   Type: Term Definitions: 1. a habitual repetition of some grimace, shrug of the shoulder, twisting or jerking of the head, or the like.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=92064
   
   

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