[1] : The Collaborative International Dictionary of English v.0.48

eccentricity \ec`centric"ity\, n.; pl. eccentricities. cf.
   f. excentricit'e.
   1. the state of being eccentric; deviation from the customary
      line of conduct; oddity.
      1913 webster

   2. math. the ratio of the distance between the center and
      the focus of an ellipse or hyperbola to its
      semi-transverse axis.
      1913 webster

   3. astron. the ratio of the distance of the center of the
      orbit of a heavenly body from the center of the body round
      which it revolves to the semi-transverse axis of the
      orbit.
      1913 webster

   4. mech. the distance of the center of figure of a body, as
      of an eccentric, from an axis about which it turns; the
      throw.
      1913 webster
see also:
eccentricities 

Eccentricities >> E Words
Eccentricities, definition of term: Eccentricities
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