WordWeb Online

1. Strange and unconventional behaviour
   - kookiness
    
2. (geometry) a ratio describing the shape of a conic section; the ratio of the distance between the foci to the length of the major axis
   "a circle is an ellipse with zero eccentricity"
    
3. A circularity that has a different centre or deviates from a circular path

Derived forms: eccentricities

See also: eccentric

Type of: circularity, disk shape, ratio, strangeness, unfamiliarity

Antonym: concentricity

Encyclopedia: Eccentricity