Eccentricity

Eccentricity (from Latin ex centro, from the middle ') stands for:

Eccentricity (mathematics), a measure of the deviation of the ellipse from a circular shape
Eccentricity (Astronomy), a measure of the deviation of an elliptical orbit
Maximum distance of a node to all other nodes in a graph; see path (graph theory ) # length and distance
Eccentricity (technology), a deviation from the center or from the symmetry