Eccentricity
Pronunciation : Ec`cen*tric"i*ty
Part of Speech : n.;
Etymology : [Cf. F. excentricit?.]
Definition : 1. The state of being eccentric; deviation from the customary line of conduct; oddity.
2. (Math.)
Defn: The ratio of the distance between the center and the focus of an ellipse or hyperbola to its semi-transverse axis.
3. (Astron.)
Defn: 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.
4. (Mech.)
Defn: The distance of the center of figure of a body, as of an eccentric, from an axis about which it turns; the throw.
pl. Eccentricities.
Source : Webster's Unabridged Dictionary, 1913