1. 
   Unstable Lie
   A fetus that consistently changes its position during the prenatal period. The fetus may lie horizontal at one moment and vertically at another.
   Found op http://www.pregnology.com/AZ/U/1
   
   
2. 
   unstable lie
   Type: Term Definitions: 1. oblique orientation of the fetus that is neither transverse nor longitudinal, but that converts to one or the other before or during labor.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=49336
   
   

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