eccentricity
/ˌeksenˈtrɪsətɪ/noun
(pl. -ies) ［mass noun］
1
- the quality of being eccentric古怪, 怪僻。
1.1
- count noun（一般作eccentricities）an eccentric act, habit, or thing古怪的行为 （或习惯、事物） ：
her eccentricities were amusing rather than irritating.
她的古怪行为与其说令人反感倒不如说很逗人喜欢。
2
- technical deviation of a curve or orbit from circularity〈技〉偏心率; 离心率。
2.1
- count noun a measure of the extent of such deviation偏心度：
Halley's Comet has an eccentricity of about 0.9675.
哈雷彗星的偏心度约为0.9675。