1. Departing from a recognized, conventional, or established norm or pattern. See synonyms at strange. 2. Deviating from a circular form or path, as in an elliptical orbit. 3a. Not situated at or in the geometric center. b. Having the axis located elsewhere than at the geometric center.
NOUN:
1. One that deviates markedly from an established norm, especially a person of odd or unconventional behavior. 2.Physics A disk or wheel having its axis of revolution displaced from its center so that it is capable of imparting reciprocating motion.
ETYMOLOGY:
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 Appendix I).