ec·cen·tric

[ik-sen-trik, ek-]

adjective

1.  Deviating from the recognized or customary character, practice, etc.; irregular; erratic; peculiar; odd: eccentric conduct; an eccentric person.
2.  Geometry . not having the same center; not concentric: used especially of two circles or spheres at least one of which contains the centers of both.
3.  (of an axis, axle, etc.) not situated in the center.
4.  Machinery . having the axis or support away from the center: an eccentric wheel.
5.  Astronomy . deviating from a circular form, as an elliptic orbit.