eccentricity

Plural: eccentricities

Noun

• strange and unconventional behavior
• (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"
• a circularity that has a different center or deviates from a circular path
• The quality of being eccentric or odd; any eccentric behaviour.
• The ratio, constant for any particular conic section, of the distance of a point from the focus to its distance from the directrix.
• The eccentricity of the conic section (usually an ellipse) defined by the orbit of a given object around a reference object (such as that of a planet around the sun).
• The farthest distance from a vertex to any other vertex.

Examples

• For an ellipse, the eccentricity is the ratio of the distance from the center to a focus divided by the length of the semi-major axis.

Antonyms

concentricity