D defs.my
Entry 4 senses Webster, 1913

Eccentricity

/ĕkˌ-sən-trĭs'-ət-ē/ · Ec·cen·tric·i·ty · IPA /ˌɛk.sɛnˈtɹɪs.ɪ.ti/
01 n. The state of being eccentric; deviation from the customary line of conduct; oddity.
pl. Eccentricities ((#))
  1. 1.
    The state of being eccentric; deviation from the customary line of conduct; oddity.
  2. 2.
    The ratio of the distance between the center and the focus of an ellipse or hyperbola to its semi-transverse axis.(Math.)
  3. 3.
    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.(Astron.)
  4. 4.
    The distance of the center of figure of a body, as of an eccentric, from an axis about which it turns; the throw.(Mech.)