anteversion /-vur″shən/ [L, ante + versio, turning] , 1. an abnormal position of an organ in which it is tilted or bent forward on its axis, away from the midline. 2. (in dentistry) the tipping or tilting of teeth or other mandibular structures more anteriorly than normal. Compare anterocclusion. 3. the angulation created in the transverse plane between the neck of the femur and shaft of the femur. The normal angle is between 15 and 20 degrees.