eccentricity
Eccentricity refers to the degree to which an object deviates from being circular. In astronomy, it describes the shape of an orbit, with a value ranging from 0 (perfect circle) to 1 (parabola). For example, the orbit of Earth has a low eccentricity, making it nearly circular, while the orbit of comets can have high eccentricity, resulting in elongated paths.
In a broader context, eccentricity can also describe unusual or unconventional behavior in people. An eccentric person may have unique habits, interests, or styles that set them apart from societal norms. This individuality can be seen as a form of creativity or self-expression.