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 state or condition of being irregular, or the extent to which something is irregular.
A violation of rules.
An object or event that is not regular or ordinary.
An instance of being irregular.
Irregular bowel movement (e.g. diarrhea or constipation).