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

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