1. [ noun ] strange and unconventional behavior
Related terms: unfamiliarity oddity
2. [ noun ] (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"

Related terms: ratio geometry
3. [ noun ] (geometry) a circularity that has a different center or deviates from a circular path
Related terms: concentricity circularity
Similar spelling:   eccentric