[ik-sen-trik, ek-] 
| 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 esp. 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. |
| 6. | a person who has an unusual, peculiar, or odd personality, set of beliefs, or behavior pattern. |
| 7. | something that is unusual, peculiar, or odd. |
| 8. | Machinery. a device for converting circular motion into rectilinear motion, consisting of a disk fixed somewhat off-center to a revolving shaft, and working freely in a surrounding collar (eccentric strap), to which a rod (eccentric rod) is attached. |
ec·cen·tric (ĭk-sěn'trĭk, ěk-)  (click for larger image in new window) adj.
[Middle English eccentrik, planetary orbit of which the earth is not at the center, from Medieval Latin eccentricus, not having the same center, from Greek ekkentros : ek-, out of; see ecto- + kentron, center (from kentein, to prick; see kent- in Indo-European roots).] ec·cen'tri·cal·ly adv. |
eccentric ec·cen·tric (ĭk-sěn'trĭk, ěk-)
adj.
Departing from a recognized, conventional, or established norm or pattern.
Situated or proceeding away from the center.
trɪk